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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1917859.pdf | 400 kB | Shaun Ewing | Jul 11, 1933 00:00 |
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US-1917859-A // Telephone system // Stacy Leland J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 400 kB | Shaun Ewing | Jul 11, 1933 00:00 | US-1917859-A // Telephone system // Stacy Leland J. // Bell Telephone Labor Inc | ||||
| PDF File 1917879.pdf | 677 kB | Shaun Ewing | Jul 11, 1933 00:00 |
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US-1917879-A // Telephone system // Draper John B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 677 kB | Shaun Ewing | Jul 11, 1933 00:00 | US-1917879-A // Telephone system // Draper John B. // Bell Telephone Labor Inc | ||||
| PDF File 1917881.pdf | 1.03 MB | Shaun Ewing | Jul 11, 1933 00:00 |
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US-1917881-A // Remote control device // Germanton Charles E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.03 MB | Shaun Ewing | Jul 11, 1933 00:00 | US-1917881-A // Remote control device // Germanton Charles E. // Bell Telephone Labor Inc | ||||
| PDF File 1917882.pdf | 509 kB | Shaun Ewing | Jul 11, 1933 00:00 |
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US-1917882-A // Signaling system // Gilbert John J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 509 kB | Shaun Ewing | Jul 11, 1933 00:00 | US-1917882-A // Signaling system // Gilbert John J. // Bell Telephone Labor Inc | ||||
| PDF File 1917884.pdf | 4.42 MB | Shaun Ewing | Jul 11, 1933 00:00 |
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US-1917884-A // Call charging telephone system // Hague Alfred E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 4.42 MB | Shaun Ewing | Jul 11, 1933 00:00 | US-1917884-A // Call charging telephone system // Hague Alfred E. // Bell Telephone Labor Inc | ||||
| PDF File 1917885.pdf | 627 kB | Shaun Ewing | Jul 11, 1933 00:00 |
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US-1917885-A // Telegraph repeater circuit // Hearn Richard B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 627 kB | Shaun Ewing | Jul 11, 1933 00:00 | US-1917885-A // Telegraph repeater circuit // Hearn Richard B. // Bell Telephone Labor Inc | ||||
| PDF File 1917921.pdf | 1.07 MB | Shaun Ewing | Jul 11, 1933 00:00 |
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US-1917921-A // Frequency changer system // Burton Everett T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.07 MB | Shaun Ewing | Jul 11, 1933 00:00 | US-1917921-A // Frequency changer system // Burton Everett T. // Bell Telephone Labor Inc | ||||
| PDF File 1918244.pdf | 626 kB | Shaun Ewing | Jul 18, 1933 00:00 |
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US-1918244-A // Manufacture of vapor electric devices // Bond Donald S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 626 kB | Shaun Ewing | Jul 18, 1933 00:00 | US-1918244-A // Manufacture of vapor electric devices // Bond Donald S. // Bell Telephone Labor Inc | ||||
| PDF File 1918259.pdf | 509 kB | Shaun Ewing | Jul 18, 1933 00:00 |
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US-1918259-A // Electrical resistance // Gabriel John C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 509 kB | Shaun Ewing | Jul 18, 1933 00:00 | US-1918259-A // Electrical resistance // Gabriel John C. // Bell Telephone Labor Inc | ||||
| PDF File 1918267.pdf | 710 kB | Shaun Ewing | Jul 18, 1933 00:00 |
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US-1918267-A // Sound recording and reproducing system // Herriott William // Bell Telephone Labor Inc | |||
| Version 1 (current) | 710 kB | Shaun Ewing | Jul 18, 1933 00:00 | US-1918267-A // Sound recording and reproducing system // Herriott William // Bell Telephone Labor Inc | ||||
| PDF File 1918271.pdf | 873 kB | Shaun Ewing | Jul 18, 1933 00:00 |
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US-1918271-A // Sound recording and reproducing system // Keller Arthur C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 873 kB | Shaun Ewing | Jul 18, 1933 00:00 | US-1918271-A // Sound recording and reproducing system // Keller Arthur C. // Bell Telephone Labor Inc | ||||
| PDF File 1918309.pdf | 489 kB | Shaun Ewing | Jul 18, 1933 00:00 |
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US-1918309-A // Glow discharge lamp // Weinhart Howard W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 489 kB | Shaun Ewing | Jul 18, 1933 00:00 | US-1918309-A // Glow discharge lamp // Weinhart Howard W. // Bell Telephone Labor Inc | ||||
| PDF File 1918822.pdf | 985 kB | Shaun Ewing | Jul 18, 1933 00:00 |
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US-1918822-A // Signal transmission system // Norman Nathaniel C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 985 kB | Shaun Ewing | Jul 18, 1933 00:00 | US-1918822-A // Signal transmission system // Norman Nathaniel C. // Bell Telephone Labor Inc | ||||
| PDF File 1918971.pdf | 214 kB | Shaun Ewing | Jul 18, 1933 00:00 |
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US-1918971-A // Insulation compound // Kemp Archie R. ; Ingmanson John H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 214 kB | Shaun Ewing | Jul 18, 1933 00:00 | US-1918971-A // Insulation compound // Kemp Archie R. ; Ingmanson John H. // Bell Telephone Labor Inc | ||||
| PDF File 1918972.pdf | 518 kB | Shaun Ewing | Jul 18, 1933 00:00 |
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US-1918972-A // Phonograph reproducer // King John H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 518 kB | Shaun Ewing | Jul 18, 1933 00:00 | US-1918972-A // Phonograph reproducer // King John H. // Bell Telephone Labor Inc | ||||
| PDF File 1918976.pdf | 315 kB | Shaun Ewing | Jul 18, 1933 00:00 |
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US-1918976-A // Piezo-electric crystals // Marrison Warren A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 315 kB | Shaun Ewing | Jul 18, 1933 00:00 | US-1918976-A // Piezo-electric crystals // Marrison Warren A. // Bell Telephone Labor Inc | ||||
| PDF File 1918977.pdf | 497 kB | Shaun Ewing | Jul 18, 1933 00:00 |
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US-1918977-A // Synchronous motor // Marrison Warren A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 497 kB | Shaun Ewing | Jul 18, 1933 00:00 | US-1918977-A // Synchronous motor // Marrison Warren A. // Bell Telephone Labor Inc | ||||
| PDF File 1919019.pdf | 804 kB | Shaun Ewing | Jul 18, 1933 00:00 |
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US-1919019-A // Artificial cable and loading coil therefor // Greenidge Ralph M. C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 804 kB | Shaun Ewing | Jul 18, 1933 00:00 | US-1919019-A // Artificial cable and loading coil therefor // Greenidge Ralph M. C. // Bell Telephone Labor Inc | ||||
| PDF File 1919035.pdf | 766 kB | Shaun Ewing | Jul 18, 1933 00:00 |
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US-1919035-A // Carrier telegraph interference suppressor // Phelps Walter A. ; Koerner Allan M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 766 kB | Shaun Ewing | Jul 18, 1933 00:00 | US-1919035-A // Carrier telegraph interference suppressor // Phelps Walter A. ; Koerner Allan M. // Bell Telephone Labor Inc | ||||
| PDF File 1919039.pdf | 639 kB | Shaun Ewing | Jul 18, 1933 00:00 |
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US-1919039-A // Switching device // Ritchie George A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 639 kB | Shaun Ewing | Jul 18, 1933 00:00 | US-1919039-A // Switching device // Ritchie George A. // Bell Telephone Labor Inc |
