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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1933650.pdf | 510 kB | Shaun Ewing | Nov 07, 1933 00:00 |
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US-1933650-A // Signaling system // Bascom Henry M. // American Telephone & Telegraph | |||
| Version 1 (current) | 510 kB | Shaun Ewing | Nov 07, 1933 00:00 | US-1933650-A // Signaling system // Bascom Henry M. // American Telephone & Telegraph | ||||
| PDF File 2041008.pdf | 509 kB | Shaun Ewing | May 19, 1936 00:00 |
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US-2041008-A // Voltage measuring system // Matte Andrew L. // American Telephone & Telegraph | |||
| Version 1 (current) | 509 kB | Shaun Ewing | May 19, 1936 00:00 | US-2041008-A // Voltage measuring system // Matte Andrew L. // American Telephone & Telegraph | ||||
| PDF File 1874466.pdf | 508 kB | Shaun Ewing | Aug 30, 1932 00:00 |
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US-1874466-A // Transmission regulating system // Demarest Charles S. // American Telephone & Telegraph | |||
| Version 1 (current) | 508 kB | Shaun Ewing | Aug 30, 1932 00:00 | US-1874466-A // Transmission regulating system // Demarest Charles S. // American Telephone & Telegraph | ||||
| PDF File 2099089.pdf | 507 kB | Shaun Ewing | Nov 16, 1937 00:00 |
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US-2099089-A // Relay // Weaver Allan // American Telephone & Telegraph | |||
| Version 1 (current) | 507 kB | Shaun Ewing | Nov 16, 1937 00:00 | US-2099089-A // Relay // Weaver Allan // American Telephone & Telegraph | ||||
| PDF File 1845034.pdf | 507 kB | Shaun Ewing | Feb 16, 1932 00:00 |
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US-1845034-A // Signaling apparatus for recording systems // Bickelhaupt Carroll O. // American Telephone & Telegraph | |||
| Version 1 (current) | 507 kB | Shaun Ewing | Feb 16, 1932 00:00 | US-1845034-A // Signaling apparatus for recording systems // Bickelhaupt Carroll O. // American Telephone & Telegraph | ||||
| PDF File 2066465.pdf | 505 kB | Shaun Ewing | Jan 05, 1937 00:00 |
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US-2066465-A // Switch // Friend Otto A. // American Telephone & Telegraph | |||
| Version 1 (current) | 505 kB | Shaun Ewing | Jan 05, 1937 00:00 | US-2066465-A // Switch // Friend Otto A. // American Telephone & Telegraph | ||||
| PDF File 1972985.pdf | 504 kB | Shaun Ewing | Sept 11, 1934 00:00 |
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US-1972985-A // Electric switching device // Gardner Leland A. // American Telephone & Telegraph | |||
| Version 1 (current) | 504 kB | Shaun Ewing | Sept 11, 1934 00:00 | US-1972985-A // Electric switching device // Gardner Leland A. // American Telephone & Telegraph | ||||
| PDF File 2037847.pdf | 504 kB | Shaun Ewing | Apr 21, 1936 00:00 |
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US-2037847-A // Synchronizing system // Bown Ralph // American Telephone & Telegraph | |||
| Version 1 (current) | 504 kB | Shaun Ewing | Apr 21, 1936 00:00 | US-2037847-A // Synchronizing system // Bown Ralph // American Telephone & Telegraph | ||||
| PDF File 1914414.pdf | 504 kB | Shaun Ewing | Jun 20, 1933 00:00 |
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US-1914414-A // System for measuring transmission at various frequencies // Fairchild Frank E. // American Telephone & Telegraph | |||
| Version 1 (current) | 504 kB | Shaun Ewing | Jun 20, 1933 00:00 | US-1914414-A // System for measuring transmission at various frequencies // Fairchild Frank E. // American Telephone & Telegraph | ||||
| PDF File 1836129.pdf | 503 kB | Shaun Ewing | Dec 15, 1931 00:00 |
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US-1836129-A // Signaling system // Potter Ralph K. // American Telephone & Telegraph | |||
| Version 1 (current) | 503 kB | Shaun Ewing | Dec 15, 1931 00:00 | US-1836129-A // Signaling system // Potter Ralph K. // American Telephone & Telegraph | ||||
| PDF File 2121935.pdf | 503 kB | Shaun Ewing | Jun 28, 1938 00:00 |
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US-2121935-A // Amplifying system // Swart Leland Kasson // American Telephone & Telegraph | |||
| Version 1 (current) | 503 kB | Shaun Ewing | Jun 28, 1938 00:00 | US-2121935-A // Amplifying system // Swart Leland Kasson // American Telephone & Telegraph | ||||
| PDF File 2095341.pdf | 502 kB | Shaun Ewing | Oct 12, 1937 00:00 |
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US-2095341-A // Electrooptical transmission system // Mertz Pierre // American Telephone & Telegraph | |||
| Version 1 (current) | 502 kB | Shaun Ewing | Oct 12, 1937 00:00 | US-2095341-A // Electrooptical transmission system // Mertz Pierre // American Telephone & Telegraph | ||||
| PDF File 2041933.pdf | 502 kB | Shaun Ewing | May 26, 1936 00:00 |
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US-2041933-A // Telephone system // Inglis Alfred Hartwell // American Telephone & Telegraph | |||
| Version 1 (current) | 502 kB | Shaun Ewing | May 26, 1936 00:00 | US-2041933-A // Telephone system // Inglis Alfred Hartwell // American Telephone & Telegraph | ||||
| PDF File 1900045.pdf | 502 kB | Shaun Ewing | Mar 07, 1933 00:00 |
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US-1900045-A // Two-way negative resistance repeater // Crisson George // American Telephone & Telegraph | |||
| Version 1 (current) | 502 kB | Shaun Ewing | Mar 07, 1933 00:00 | US-1900045-A // Two-way negative resistance repeater // Crisson George // American Telephone & Telegraph | ||||
| PDF File 1816967.pdf | 502 kB | Shaun Ewing | Aug 04, 1931 00:00 |
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US-1816967-A // Telephone system // Green Irving W. // American Telephone & Telegraph | |||
| Version 1 (current) | 502 kB | Shaun Ewing | Aug 04, 1931 00:00 | US-1816967-A // Telephone system // Green Irving W. // American Telephone & Telegraph | ||||
| PDF File 2036383.pdf | 500 kB | Shaun Ewing | Apr 07, 1936 00:00 |
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US-2036383-A // Frequency control distribution // Affel Herman Andrew // American Telephone & Telegraph | |||
| Version 1 (current) | 500 kB | Shaun Ewing | Apr 07, 1936 00:00 | US-2036383-A // Frequency control distribution // Affel Herman Andrew // American Telephone & Telegraph | ||||
| PDF File 2014506.pdf | 500 kB | Shaun Ewing | Sept 17, 1935 00:00 |
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US-2014506-A // Coin collection apparatus // Patche Clinton John // American Telephone & Telegraph | |||
| Version 1 (current) | 500 kB | Shaun Ewing | Sept 17, 1935 00:00 | US-2014506-A // Coin collection apparatus // Patche Clinton John // American Telephone & Telegraph | ||||
| PDF File 1821997.pdf | 498 kB | Shaun Ewing | Sept 08, 1931 00:00 |
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US-1821997-A // Compression of frequency range // Wintringham William T. // American Telephone & Telegraph | |||
| Version 1 (current) | 498 kB | Shaun Ewing | Sept 08, 1931 00:00 | US-1821997-A // Compression of frequency range // Wintringham William T. // American Telephone & Telegraph | ||||
| PDF File 1812977.pdf | 498 kB | Shaun Ewing | Jul 07, 1931 00:00 |
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US-1812977-A // Oscillation generator // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 498 kB | Shaun Ewing | Jul 07, 1931 00:00 | US-1812977-A // Oscillation generator // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1819054.pdf | 496 kB | Shaun Ewing | Aug 18, 1931 00:00 |
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US-1819054-A // Carrier signaling system // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 496 kB | Shaun Ewing | Aug 18, 1931 00:00 | US-1819054-A // Carrier signaling system // Affel Herman A. // American Telephone & Telegraph |
