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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2722682.pdf | 426 kB | Shaun Ewing | Nov 01, 1955 00:00 |
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US-2722682-A // Two-way single sideband radio system // Neiswinter James T. // American Telephone & Telegraph | |||
| Version 1 (current) | 426 kB | Shaun Ewing | Nov 01, 1955 00:00 | US-2722682-A // Two-way single sideband radio system // Neiswinter James T. // American Telephone & Telegraph | ||||
| PDF File 2726281.pdf | 569 kB | Shaun Ewing | Dec 06, 1955 00:00 |
|
US-2726281-A // Telegraph code signal transmitter // Hanley Frank Harold // American Telephone & Telegraph | |||
| Version 1 (current) | 569 kB | Shaun Ewing | Dec 06, 1955 00:00 | US-2726281-A // Telegraph code signal transmitter // Hanley Frank Harold // American Telephone & Telegraph | ||||
| PDF File 2736884.pdf | 282 kB | Shaun Ewing | Feb 28, 1956 00:00 |
|
US-2736884-A // Overcurrent and undercurrent indicating lamp // Yeomans Lucien Osborn // American Telephone & Telegraph | |||
| Version 1 (current) | 282 kB | Shaun Ewing | Feb 28, 1956 00:00 | US-2736884-A // Overcurrent and undercurrent indicating lamp // Yeomans Lucien Osborn // American Telephone & Telegraph | ||||
| PDF File 2739180.pdf | 963 kB | Shaun Ewing | Mar 20, 1956 00:00 |
|
US-2739180-A // Message address intercommunicating telegraph system // Britt Horace J. // American Telephone & Telegraph | |||
| Version 1 (current) | 963 kB | Shaun Ewing | Mar 20, 1956 00:00 | US-2739180-A // Message address intercommunicating telegraph system // Britt Horace J. // American Telephone & Telegraph | ||||
| PDF File 2750446.pdf | 620 kB | Shaun Ewing | Jun 12, 1956 00:00 |
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US-2750446-A // Code translating device // Martin Wade B. // American Telephone & Telegraph | |||
| Version 1 (current) | 620 kB | Shaun Ewing | Jun 12, 1956 00:00 | US-2750446-A // Code translating device // Martin Wade B. // American Telephone & Telegraph | ||||
| PDF File 2755345.pdf | 353 kB | Shaun Ewing | Jul 17, 1956 00:00 |
|
US-2755345-A // Line insulation testing circuit // Vaupel Ernest Walter // American Telephone & Telegraph | |||
| Version 1 (current) | 353 kB | Shaun Ewing | Jul 17, 1956 00:00 | US-2755345-A // Line insulation testing circuit // Vaupel Ernest Walter // American Telephone & Telegraph | ||||
| PDF File 2755445.pdf | 666 kB | Shaun Ewing | Jul 17, 1956 00:00 |
|
US-2755445-A // Interconnection of transmission lines // Rhodes Harold A. // American Telephone & Telegraph | |||
| Version 1 (current) | 666 kB | Shaun Ewing | Jul 17, 1956 00:00 | US-2755445-A // Interconnection of transmission lines // Rhodes Harold A. // American Telephone & Telegraph | ||||
| PDF File 2759144.pdf | 222 kB | Shaun Ewing | Aug 14, 1956 00:00 |
|
US-2759144-A // Electrostatic probe // Whyman Walter William // American Telephone & Telegraph | |||
| Version 1 (current) | 222 kB | Shaun Ewing | Aug 14, 1956 00:00 | US-2759144-A // Electrostatic probe // Whyman Walter William // American Telephone & Telegraph | ||||
| PDF File 2761896.pdf | 814 kB | Shaun Ewing | Sept 04, 1956 00:00 |
|
US-2761896-A // Telegraph repeater system // Foley Daniel Elmore ; Hanley Frank Harold // American Telephone & Telegraph | |||
| Version 1 (current) | 814 kB | Shaun Ewing | Sept 04, 1956 00:00 | US-2761896-A // Telegraph repeater system // Foley Daniel Elmore ; Hanley Frank Harold // American Telephone & Telegraph | ||||
| PDF File 2761922.pdf | 741 kB | Shaun Ewing | Sept 04, 1956 00:00 |
|
US-2761922-A // Automatic transmission measuring circuit for successively testing the idle trunks in a group of trunks // Carroll William R. // American Telephone & Telegraph | |||
| Version 1 (current) | 741 kB | Shaun Ewing | Sept 04, 1956 00:00 | US-2761922-A // Automatic transmission measuring circuit for successively testing the idle trunks in a group of trunks // Carroll William R. // American Telephone & Telegraph | ||||
| PDF File 2763845.pdf | 379 kB | Shaun Ewing | Sept 18, 1956 00:00 |
|
US-2763845-A // Short circuiting plug for coaxial line // Laube Otto Theodore // American Telephone & Telegraph | |||
| Version 1 (current) | 379 kB | Shaun Ewing | Sept 18, 1956 00:00 | US-2763845-A // Short circuiting plug for coaxial line // Laube Otto Theodore // American Telephone & Telegraph | ||||
| PDF File 2764753.pdf | 391 kB | Shaun Ewing | Sept 25, 1956 00:00 |
|
US-2764753-A // Carrier failure alarm circuit // Martin Wade B. // American Telephone & Telegraph | |||
| Version 1 (current) | 391 kB | Shaun Ewing | Sept 25, 1956 00:00 | US-2764753-A // Carrier failure alarm circuit // Martin Wade B. // American Telephone & Telegraph | ||||
| PDF File 2771511.pdf | 327 kB | Shaun Ewing | Nov 20, 1956 00:00 |
|
US-2771511-A // Line clearing device for receiver-off-hook condition // Jr. Richard S. Morris, // American Telephone & Telegraph | |||
| Version 1 (current) | 327 kB | Shaun Ewing | Nov 20, 1956 00:00 | US-2771511-A // Line clearing device for receiver-off-hook condition // Jr. Richard S. Morris, // American Telephone & Telegraph | ||||
| PDF File 2776333.pdf | 3.43 MB | Shaun Ewing | Jan 01, 1957 00:00 |
|
US-2776333-A // Teletypewriter code controlled selective device // Neiswinter James T. // American Telephone & Telegraph | |||
| Version 1 (current) | 3.43 MB | Shaun Ewing | Jan 01, 1957 00:00 | US-2776333-A // Teletypewriter code controlled selective device // Neiswinter James T. // American Telephone & Telegraph | ||||
| PDF File 2777251.pdf | 339 kB | Shaun Ewing | Jan 15, 1957 00:00 |
|
US-2777251-A // Self-oscillating double tone whistle // Bailey Austin // American Telephone & Telegraph | |||
| Version 1 (current) | 339 kB | Shaun Ewing | Jan 15, 1957 00:00 | US-2777251-A // Self-oscillating double tone whistle // Bailey Austin // American Telephone & Telegraph | ||||
| PDF File 2777900.pdf | 359 kB | Shaun Ewing | Jan 15, 1957 00:00 |
|
US-2777900-A // Reduction of quadrature distortion // Cowan Frank Augustus // American Telephone & Telegraph | |||
| Version 1 (current) | 359 kB | Shaun Ewing | Jan 15, 1957 00:00 | US-2777900-A // Reduction of quadrature distortion // Cowan Frank Augustus // American Telephone & Telegraph | ||||
| PDF File 2799739.pdf | 935 kB | Shaun Ewing | Jul 16, 1957 00:00 |
|
US-2799739-A // Method and means for identifying conductor pairs // Lowman Henry C. J. ; Murphy Edward M. ; Musgrave John C. ; Somers Melvin L. // American Telephone & Telegraph | |||
| Version 1 (current) | 935 kB | Shaun Ewing | Jul 16, 1957 00:00 | US-2799739-A // Method and means for identifying conductor pairs // Lowman Henry C. J. ; Murphy Edward M. ; Musgrave John C. ; Somers Melvin L. // American Telephone & Telegraph | ||||
| PDF File 2803706.pdf | 558 kB | Shaun Ewing | Aug 20, 1957 00:00 |
|
US-2803706-A // Trunk circuit // Althouse Homer C. // American Telephone & Telegraph | |||
| Version 1 (current) | 558 kB | Shaun Ewing | Aug 20, 1957 00:00 | US-2803706-A // Trunk circuit // Althouse Homer C. // American Telephone & Telegraph | ||||
| PDF File 2804502.pdf | 511 kB | Shaun Ewing | Aug 27, 1957 00:00 |
|
US-2804502-A // Coin collector // Iwema Bernard // American Telephone & Telegraph | |||
| Version 1 (current) | 511 kB | Shaun Ewing | Aug 27, 1957 00:00 | US-2804502-A // Coin collector // Iwema Bernard // American Telephone & Telegraph | ||||
| PDF File 2810016.pdf | 330 kB | Shaun Ewing | Oct 15, 1957 00:00 |
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US-2810016-A // Key telephone set holding circuit // Knittle Gale L. // American Telephone & Telegraph | |||
| Version 1 (current) | 330 kB | Shaun Ewing | Oct 15, 1957 00:00 | US-2810016-A // Key telephone set holding circuit // Knittle Gale L. // American Telephone & Telegraph |
