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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1353637.pdf | 520 kB | Shaun Ewing | Sept 21, 1920 00:00 |
|
US-1353637-A // Repeater-circuit // Crisson George // American Telephone & Telegraph | |||
| Version 1 (current) | 520 kB | Shaun Ewing | Sept 21, 1920 00:00 | US-1353637-A // Repeater-circuit // Crisson George // American Telephone & Telegraph | ||||
| PDF File 1353698.pdf | 491 kB | Shaun Ewing | Sept 21, 1920 00:00 |
|
US-1353698-A // Combined carrier and radio system // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 491 kB | Shaun Ewing | Sept 21, 1920 00:00 | US-1353698-A // Combined carrier and radio system // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1353735.pdf | 450 kB | Shaun Ewing | Sept 21, 1920 00:00 |
|
US-1353735-A // Antenna structure // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 450 kB | Shaun Ewing | Sept 21, 1920 00:00 | US-1353735-A // Antenna structure // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1354229.pdf | 288 kB | Shaun Ewing | Sept 28, 1920 00:00 |
|
US-1354229-A // Telephone-transmitter // Thompson George K. // American Telephone & Telegraph | |||
| Version 1 (current) | 288 kB | Shaun Ewing | Sept 28, 1920 00:00 | US-1354229-A // Telephone-transmitter // Thompson George K. // American Telephone & Telegraph | ||||
| PDF File 1355147.pdf | 840 kB | Shaun Ewing | Oct 12, 1920 00:00 |
|
US-1355147-A // Network-selecting device // Jacobs Oliver B. // American Telephone & Telegraph | |||
| Version 1 (current) | 840 kB | Shaun Ewing | Oct 12, 1920 00:00 | US-1355147-A // Network-selecting device // Jacobs Oliver B. // American Telephone & Telegraph | ||||
| PDF File 1355897.pdf | 1.24 MB | Shaun Ewing | Oct 19, 1920 00:00 |
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US-1355897-A // Testing-circuit for repeaters equipped with automatic networkselectors // Demarest Charles S. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.24 MB | Shaun Ewing | Oct 19, 1920 00:00 | US-1355897-A // Testing-circuit for repeaters equipped with automatic networkselectors // Demarest Charles S. // 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 1356557.pdf | 320 kB | Shaun Ewing | Oct 26, 1920 00:00 |
|
US-1356557-A // Roller-clutch // Potts Louis M. // American Telephone & Telegraph | |||
| Version 1 (current) | 320 kB | Shaun Ewing | Oct 26, 1920 00:00 | US-1356557-A // Roller-clutch // Potts Louis M. // American Telephone & Telegraph | ||||
| PDF File 1357264.pdf | 220 kB | Shaun Ewing | Nov 02, 1920 00:00 |
|
US-1357264-A // Magnetic modulator // Dyke Karl S. Van // American Telephone & Telegraph | |||
| Version 1 (current) | 220 kB | Shaun Ewing | Nov 02, 1920 00:00 | US-1357264-A // Magnetic modulator // Dyke Karl S. Van // American Telephone & Telegraph | ||||
| PDF File 1357296.pdf | 279 kB | Shaun Ewing | Nov 02, 1920 00:00 |
|
US-1357296-A // Substation-circuits // Martin William H. // American Telephone & Telegraph | |||
| Version 1 (current) | 279 kB | Shaun Ewing | Nov 02, 1920 00:00 | US-1357296-A // Substation-circuits // Martin William H. // American Telephone & Telegraph | ||||
| PDF File 1357979.pdf | 504 kB | Shaun Ewing | Nov 09, 1920 00:00 |
|
US-1357979-A // Transmission-equalization arrangement // Harper Alfred U. // American Telephone & Telegraph | |||
| Version 1 (current) | 504 kB | Shaun Ewing | Nov 09, 1920 00:00 | US-1357979-A // Transmission-equalization arrangement // Harper Alfred U. // American Telephone & Telegraph | ||||
| PDF File 1358053.pdf | 405 kB | Shaun Ewing | Nov 09, 1920 00:00 |
|
US-1358053-A // Telephone system for auditoriums // Bascom Henry M. // American Telephone & Telegraph | |||
| Version 1 (current) | 405 kB | Shaun Ewing | Nov 09, 1920 00:00 | US-1358053-A // Telephone system for auditoriums // Bascom Henry M. // American Telephone & Telegraph | ||||
| PDF File 1358758.pdf | 707 kB | Shaun Ewing | Nov 16, 1920 00:00 |
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US-1358758-A // Telephone trunk-circuits // Kuhn George W. // American Telephone & Telegraph | |||
| Version 1 (current) | 707 kB | Shaun Ewing | Nov 16, 1920 00:00 | US-1358758-A // Telephone trunk-circuits // Kuhn George W. // American Telephone & Telegraph | ||||
| PDF File 1358777.pdf | 421 kB | Shaun Ewing | Nov 16, 1920 00:00 |
|
US-1358777-A // Signaling-circuits for electric railways // Osborne Harold S. // American Telephone & Telegraph | |||
| Version 1 (current) | 421 kB | Shaun Ewing | Nov 16, 1920 00:00 | US-1358777-A // Signaling-circuits for electric railways // Osborne Harold S. // American Telephone & Telegraph | ||||
| PDF File 1359516.pdf | 835 kB | Shaun Ewing | Nov 23, 1920 00:00 |
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US-1359516-A // Holding-circuits for toll-switching trunks // Loynes Owen H. // American Telephone & Telegraph | |||
| Version 1 (current) | 835 kB | Shaun Ewing | Nov 23, 1920 00:00 | US-1359516-A // Holding-circuits for toll-switching trunks // Loynes Owen H. // American Telephone & Telegraph | ||||
| PDF File 1360331.pdf | 1.08 MB | Shaun Ewing | Nov 30, 1920 00:00 |
|
US-1360331-A // Testing and adjusting apparatus for cord-circuits // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.08 MB | Shaun Ewing | Nov 30, 1920 00:00 | US-1360331-A // Testing and adjusting apparatus for cord-circuits // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1360332.pdf | 533 kB | Shaun Ewing | Nov 30, 1920 00:00 |
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US-1360332-A // Testing-circuit // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 533 kB | Shaun Ewing | Nov 30, 1920 00:00 | US-1360332-A // Testing-circuit // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1361026.pdf | 740 kB | Shaun Ewing | Dec 07, 1920 00:00 |
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US-1361026-A // Testing apparatus // Demarest Charles S. ; Shoffstall Hugh F. // American Telephone & Telegraph | |||
| Version 1 (current) | 740 kB | Shaun Ewing | Dec 07, 1920 00:00 | US-1361026-A // Testing apparatus // Demarest Charles S. ; Shoffstall Hugh F. // American Telephone & Telegraph | ||||
| PDF File 1361486.pdf | 350 kB | Shaun Ewing | Dec 07, 1920 00:00 |
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US-1361486-A // Composite signaling system // Osborne Harold S. ; Parker Ralzemond D. // American Telephone & Telegraph | |||
| Version 1 (current) | 350 kB | Shaun Ewing | Dec 07, 1920 00:00 | US-1361486-A // Composite signaling system // Osborne Harold S. ; Parker Ralzemond D. // American Telephone & Telegraph | ||||
| PDF File 1361487.pdf | 341 kB | Shaun Ewing | Dec 07, 1920 00:00 |
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US-1361487-A // Plural demodulation-circuits // Osborne Harold S. // American Telephone & Telegraph | |||
| Version 1 (current) | 341 kB | Shaun Ewing | Dec 07, 1920 00:00 | US-1361487-A // Plural demodulation-circuits // Osborne Harold S. // American Telephone & Telegraph |
