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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1218413.pdf | 691 kB | Shaun Ewing | Mar 06, 1917 00:00 |
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US-1218413-A // Quadruplex telegraphy. // Isidor Kitsee // American Telephone & Telegraph | |||
| Version 1 (current) | 691 kB | Shaun Ewing | Mar 06, 1917 00:00 | US-1218413-A // Quadruplex telegraphy. // Isidor Kitsee // American Telephone & Telegraph | ||||
| PDF File 1356546.pdf | 691 kB | Shaun Ewing | Oct 26, 1920 00:00 |
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US-1356546-A // Ciphering system // Morehouse Lyman F. // American Telephone & Telegraph | |||
| Version 1 (current) | 691 kB | Shaun Ewing | Oct 26, 1920 00:00 | US-1356546-A // Ciphering system // Morehouse Lyman F. // American Telephone & Telegraph | ||||
| PDF File 1315539.pdf | 688 kB | Shaun Ewing | Sept 09, 1919 00:00 |
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US-1315539-A // carson // John R. Carson, Of N. Y. // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 688 kB | Shaun Ewing | Sept 09, 1919 00:00 | US-1315539-A // carson // John R. Carson, Of N. Y. // American Telephone & Telegraph, New York NY | ||||
| PDF File 1167677.pdf | 688 kB | Shaun Ewing | Jan 11, 1916 00:00 |
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US-1167677-A // System for measuring capacities. // George A. Campbell ; Otto B. Blackwell ; Edwin H. Colpitts // American Telephone & Telegraph | |||
| Version 1 (current) | 688 kB | Shaun Ewing | Jan 11, 1916 00:00 | US-1167677-A // System for measuring capacities. // George A. Campbell ; Otto B. Blackwell ; Edwin H. Colpitts // American Telephone & Telegraph | ||||
| PDF File 1092957.pdf | 687 kB | Shaun Ewing | Apr 14, 1914 00:00 |
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US-1092957-A // Means for reducing reflection losses in phantom circuits. // Thomas Shaw // American Telephone & Telegraph | |||
| Version 1 (current) | 687 kB | Shaun Ewing | Apr 14, 1914 00:00 | US-1092957-A // Means for reducing reflection losses in phantom circuits. // Thomas Shaw // American Telephone & Telegraph | ||||
| PDF File 940673.pdf | 685 kB | Shaun Ewing | Nov 23, 1909 00:00 |
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US-940673-A // Telephone-key and means for actuating the same. // William Christensen // American Telephone & Telegraph | |||
| Version 1 (current) | 685 kB | Shaun Ewing | Nov 23, 1909 00:00 | US-940673-A // Telephone-key and means for actuating the same. // William Christensen // American Telephone & Telegraph | ||||
| PDF File 836612.pdf | 675 kB | Shaun Ewing | Nov 20, 1906 00:00 |
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US-836612-A // Regulating device for telephone relays and transmitters. // Herbert E. Shreeve // American Telephone & Telegraph | |||
| Version 1 (current) | 675 kB | Shaun Ewing | Nov 20, 1906 00:00 | US-836612-A // Regulating device for telephone relays and transmitters. // Herbert E. Shreeve // American Telephone & Telegraph | ||||
| PDF File 1287831.pdf | 670 kB | Shaun Ewing | Dec 17, 1918 00:00 |
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US-1287831-A // System for compensating for differences of potentials. // Henry M. Bascom // American Telephone & Telegraph | |||
| Version 1 (current) | 670 kB | Shaun Ewing | Dec 17, 1918 00:00 | US-1287831-A // System for compensating for differences of potentials. // Henry M. Bascom // American Telephone & Telegraph | ||||
| PDF File 736672.pdf | 669 kB | Shaun Ewing | Aug 18, 1903 00:00 |
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US-736672-A // Telephone. // John A. Barrett ; Louis A. Falk ; Herbert E. Shreeve // American Telephone & Telegraph | |||
| Version 1 (current) | 669 kB | Shaun Ewing | Aug 18, 1903 00:00 | US-736672-A // Telephone. // John A. Barrett ; Louis A. Falk ; Herbert E. Shreeve // American Telephone & Telegraph | ||||
| PDF File 1222077.pdf | 664 kB | Shaun Ewing | Apr 10, 1917 00:00 |
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US-1222077-A // Fraud-detecting telephone toll system. // Volney D. Cousins // American Telephone & Telegraph | |||
| Version 1 (current) | 664 kB | Shaun Ewing | Apr 10, 1917 00:00 | US-1222077-A // Fraud-detecting telephone toll system. // Volney D. Cousins // American Telephone & Telegraph | ||||
| PDF File 705935.pdf | 661 kB | Shaun Ewing | Jul 29, 1902 00:00 |
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US-705935-A // Magnetic core for inductance-coils. // John C. Lee ; Edwin H. Colpitts // American Telephone & Telegraph | |||
| Version 1 (current) | 661 kB | Shaun Ewing | Jul 29, 1902 00:00 | US-705935-A // Magnetic core for inductance-coils. // John C. Lee ; Edwin H. Colpitts // American Telephone & Telegraph | ||||
| PDF File 1173655.pdf | 661 kB | Shaun Ewing | Feb 29, 1916 00:00 |
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US-1173655-A // Phantom circuit. // Frank H. Fay ; Thomas Shaw ; James J. Pilliod // American Telephone & Telegraph | |||
| Version 1 (current) | 661 kB | Shaun Ewing | Feb 29, 1916 00:00 | US-1173655-A // Phantom circuit. // Frank H. Fay ; Thomas Shaw ; James J. Pilliod // American Telephone & Telegraph | ||||
| PDF File 592769.pdf | 654 kB | Shaun Ewing | Nov 02, 1897 00:00 |
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US-592769-A // Method of and apparatus for relaying telephonic messages // Albert W. Erdman, Of New Jersey // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 654 kB | Shaun Ewing | Nov 02, 1897 00:00 | US-592769-A // Method of and apparatus for relaying telephonic messages // Albert W. Erdman, Of New Jersey // American Telephone & Telegraph, New York NY | ||||
| PDF File 1251364.pdf | 654 kB | Shaun Ewing | Dec 25, 1917 00:00 |
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US-1251364-A // Signaling system for multiplex telephone-circuits. // Bancroft Gherardi // American Telephone & Telegraph | |||
| Version 1 (current) | 654 kB | Shaun Ewing | Dec 25, 1917 00:00 | US-1251364-A // Signaling system for multiplex telephone-circuits. // Bancroft Gherardi // American Telephone & Telegraph | ||||
| PDF File 492483.pdf | 652 kB | Shaun Ewing | Feb 28, 1893 00:00 |
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US-492483-A // Busy-signal for telephone-circuits // Edward J. Hall, of And Frank A. Pickernell of Newark New Jersey // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 652 kB | Shaun Ewing | Feb 28, 1893 00:00 | US-492483-A // Busy-signal for telephone-circuits // Edward J. Hall, of And Frank A. Pickernell of Newark New Jersey // American Telephone & Telegraph, New York NY | ||||
| PDF File 1329949.pdf | 652 kB | Shaun Ewing | Feb 03, 1920 00:00 |
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US-1329949-A // Electrical measuring apparatus // Blackwell Otto B. ; Shaw Thomas ; Koukol Clement J. // American Telephone ; Telegraph Company | |||
| Version 1 (current) | 652 kB | Shaun Ewing | Feb 03, 1920 00:00 | US-1329949-A // Electrical measuring apparatus // Blackwell Otto B. ; Shaw Thomas ; Koukol Clement J. // American Telephone ; Telegraph Company | ||||
| PDF File 453863.pdf | 650 kB | Shaun Ewing | Jun 09, 1891 00:00 |
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US-453863-A // Distributing-frame for electric conductors // Angus S. Iiibbard, Of New Jersey // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 650 kB | Shaun Ewing | Jun 09, 1891 00:00 | US-453863-A // Distributing-frame for electric conductors // Angus S. Iiibbard, Of New Jersey // American Telephone & Telegraph, New York NY | ||||
| PDF File 712766.pdf | 649 kB | Shaun Ewing | Nov 04, 1902 00:00 |
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US-712766-A // Composite transmission over loaded electric circuits. // Edwin H. Colpitts // American Telephone & Telegraph | |||
| Version 1 (current) | 649 kB | Shaun Ewing | Nov 04, 1902 00:00 | US-712766-A // Composite transmission over loaded electric circuits. // Edwin H. Colpitts // American Telephone & Telegraph | ||||
| PDF File 692471.pdf | 638 kB | Shaun Ewing | Feb 04, 1902 00:00 |
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US-692471-A // Electric annunciator. // Elsworth B. Overshiner // Swedish American Telephone Company | |||
| Version 1 (current) | 638 kB | Shaun Ewing | Feb 04, 1902 00:00 | US-692471-A // Electric annunciator. // Elsworth B. Overshiner // Swedish American Telephone Company | ||||
| PDF File 501085.pdf | 636 kB | Shaun Ewing | Jul 11, 1893 00:00 |
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US-501085-A // Telephone Circuit and Apparatus. // Sherwood J. Larned, Of Illinois And Frank A. Picker-Nell Of Newark New Jersey // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 636 kB | Shaun Ewing | Jul 11, 1893 00:00 | US-501085-A // Telephone Circuit and Apparatus. // Sherwood J. Larned, Of Illinois And Frank A. Picker-Nell Of Newark New Jersey // American Telephone & Telegraph, New York NY |
