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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1363220.pdf | 377 kB | Shaun Ewing | Dec 28, 1920 00:00 |
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US-1363220-A // Signaling device // Bascom Henry M. // American Telephone & Telegraph | |||
| Version 1 (current) | 377 kB | Shaun Ewing | Dec 28, 1920 00:00 | US-1363220-A // Signaling device // Bascom Henry M. // American Telephone & Telegraph | ||||
| PDF File 1363219.pdf | 1.47 MB | Shaun Ewing | Dec 28, 1920 00:00 |
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US-1363219-A // Trunking system // Bascom Henry M. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.47 MB | Shaun Ewing | Dec 28, 1920 00:00 | US-1363219-A // Trunking system // Bascom Henry M. // American Telephone & Telegraph | ||||
| PDF File 1362612.pdf | 430 kB | Shaun Ewing | Dec 21, 1920 00:00 |
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US-1362612-A // Wireless receiving system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 430 kB | Shaun Ewing | Dec 21, 1920 00:00 | US-1362612-A // Wireless receiving system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1362596.pdf | 975 kB | Shaun Ewing | Dec 21, 1920 00:00 |
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US-1362596-A // Semimechanical telephone system // Blauvelt William G. // American Telephone & Telegraph | |||
| Version 1 (current) | 975 kB | Shaun Ewing | Dec 21, 1920 00:00 | US-1362596-A // Semimechanical telephone system // Blauvelt William G. // American Telephone & Telegraph | ||||
| PDF File 1361929.pdf | 768 kB | Shaun Ewing | Dec 14, 1920 00:00 |
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US-1361929-A // Monitoring-circuit for telephone-repeaters // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 768 kB | Shaun Ewing | Dec 14, 1920 00:00 | US-1361929-A // Monitoring-circuit for telephone-repeaters // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1361928.pdf | 1.48 MB | Shaun Ewing | Dec 14, 1920 00:00 |
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US-1361928-A // Testing and adjusting apparatus for cord-circuits // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.48 MB | Shaun Ewing | Dec 14, 1920 00:00 | US-1361928-A // Testing and adjusting apparatus for cord-circuits // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1361522.pdf | 1012 kB | Shaun Ewing | Dec 07, 1920 00:00 |
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US-1361522-A // Plural modulation system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 1012 kB | Shaun Ewing | Dec 07, 1920 00:00 | US-1361522-A // Plural modulation system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1361488.pdf | 851 kB | Shaun Ewing | Dec 07, 1920 00:00 |
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US-1361488-A // Plural modulation system // Osborne Harold S. // American Telephone & Telegraph | |||
| Version 1 (current) | 851 kB | Shaun Ewing | Dec 07, 1920 00:00 | US-1361488-A // Plural modulation system // Osborne Harold S. // 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 | ||||
| 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 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 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 1360331.pdf | 1.08 MB | Shaun Ewing | Nov 30, 1920 00:00 |
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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 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 1358777.pdf | 421 kB | Shaun Ewing | Nov 16, 1920 00:00 |
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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 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 1358053.pdf | 405 kB | Shaun Ewing | Nov 09, 1920 00:00 |
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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 1357979.pdf | 504 kB | Shaun Ewing | Nov 09, 1920 00:00 |
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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 1357296.pdf | 279 kB | Shaun Ewing | Nov 02, 1920 00:00 |
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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 1357264.pdf | 220 kB | Shaun Ewing | Nov 02, 1920 00:00 |
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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 |
