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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1405501.pdf | 615 kB | Shaun Ewing | Feb 07, 1922 00:00 |
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US-1405501-A // Repeater-network-selecting apparatus // Demarest Charles S. // American Telephone & Telegraph | |||
| Version 1 (current) | 615 kB | Shaun Ewing | Feb 07, 1922 00:00 | US-1405501-A // Repeater-network-selecting apparatus // Demarest Charles S. // American Telephone & Telegraph | ||||
| PDF File 1406195.pdf | 387 kB | Shaun Ewing | Feb 14, 1922 00:00 |
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US-1406195-A // Testing apparatus for telephone-switchboard cords // Kuhn George W. // American Telephone & Telegraph | |||
| Version 1 (current) | 387 kB | Shaun Ewing | Feb 14, 1922 00:00 | US-1406195-A // Testing apparatus for telephone-switchboard cords // Kuhn George W. // American Telephone & Telegraph | ||||
| PDF File 1406246.pdf | 723 kB | Shaun Ewing | Feb 14, 1922 00:00 |
|
US-1406246-A // Testing and adjusting apparatus for cord circuits // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 723 kB | Shaun Ewing | Feb 14, 1922 00:00 | US-1406246-A // Testing and adjusting apparatus for cord circuits // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1406918.pdf | 387 kB | Shaun Ewing | Feb 14, 1922 00:00 |
|
US-1406918-A // Testing system // Blauvelt William G. // American Telephone & Telegraph | |||
| Version 1 (current) | 387 kB | Shaun Ewing | Feb 14, 1922 00:00 | US-1406918-A // Testing system // Blauvelt William G. // American Telephone & Telegraph | ||||
| PDF File 1406998.pdf | 152 kB | Shaun Ewing | Feb 21, 1922 00:00 |
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US-1406998-A // Signaling system // Osborne Harold S. // American Telephone & Telegraph | |||
| Version 1 (current) | 152 kB | Shaun Ewing | Feb 21, 1922 00:00 | US-1406998-A // Signaling system // Osborne Harold S. // American Telephone & Telegraph | ||||
| PDF File 1407028.pdf | 638 kB | Shaun Ewing | Feb 21, 1922 00:00 |
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US-1407028-A // Transmission-equalization arrangement // Harper Alfred U. // American Telephone & Telegraph | |||
| Version 1 (current) | 638 kB | Shaun Ewing | Feb 21, 1922 00:00 | US-1407028-A // Transmission-equalization arrangement // Harper Alfred U. // American Telephone & Telegraph | ||||
| PDF File 1407046.pdf | 414 kB | Shaun Ewing | Feb 21, 1922 00:00 |
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US-1407046-A // Telephone apparatus // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 414 kB | Shaun Ewing | Feb 21, 1922 00:00 | US-1407046-A // Telephone apparatus // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1408567.pdf | 259 kB | Shaun Ewing | Mar 07, 1922 00:00 |
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US-1408567-A // Transmission equalization arrangement // Darrow Leo H. // American Telephone & Telegraph | |||
| Version 1 (current) | 259 kB | Shaun Ewing | Mar 07, 1922 00:00 | US-1408567-A // Transmission equalization arrangement // Darrow Leo H. // American Telephone & Telegraph | ||||
| PDF File 1409913.pdf | 644 kB | Shaun Ewing | Mar 21, 1922 00:00 |
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US-1409913-A // Message-register system // Avery Frederick // American Telephone & Telegraph | |||
| Version 1 (current) | 644 kB | Shaun Ewing | Mar 21, 1922 00:00 | US-1409913-A // Message-register system // Avery Frederick // American Telephone & Telegraph | ||||
| PDF File 1410003.pdf | 404 kB | Shaun Ewing | Mar 21, 1922 00:00 |
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US-1410003-A // Repeater apparatus // Demarest Charles S. ; Loynes Owen H. // American Telephone & Telegraph | |||
| Version 1 (current) | 404 kB | Shaun Ewing | Mar 21, 1922 00:00 | US-1410003-A // Repeater apparatus // Demarest Charles S. ; Loynes Owen H. // American Telephone & Telegraph | ||||
| PDF File 1410088.pdf | 232 kB | Shaun Ewing | Mar 21, 1922 00:00 |
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US-1410088-A // Screw driver // White Ralph H. // American Telephone & Telegraph | |||
| Version 1 (current) | 232 kB | Shaun Ewing | Mar 21, 1922 00:00 | US-1410088-A // Screw driver // White Ralph H. // American Telephone & Telegraph | ||||
| PDF File 1410545.pdf | 929 kB | Shaun Ewing | Mar 28, 1922 00:00 |
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US-1410545-A // Intercommunicating system // Marrows Leon Dwight // American Telephone & Telegraph | |||
| Version 1 (current) | 929 kB | Shaun Ewing | Mar 28, 1922 00:00 | US-1410545-A // Intercommunicating system // Marrows Leon Dwight // American Telephone & Telegraph | ||||
| PDF File 1410890.pdf | 574 kB | Shaun Ewing | Mar 28, 1922 00:00 |
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US-1410890-A // Method of and means for modulating carrier oscillations // Carson John R. // American Telephone & Telegraph | |||
| Version 1 (current) | 574 kB | Shaun Ewing | Mar 28, 1922 00:00 | US-1410890-A // Method of and means for modulating carrier oscillations // Carson John R. // American Telephone & Telegraph | ||||
| PDF File 1411385.pdf | 675 kB | Shaun Ewing | Apr 04, 1922 00:00 |
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US-1411385-A // Signaling apparatus // Shackleton Samuel P. // American Telephone & Telegraph | |||
| Version 1 (current) | 675 kB | Shaun Ewing | Apr 04, 1922 00:00 | US-1411385-A // Signaling apparatus // Shackleton Samuel P. // American Telephone & Telegraph | ||||
| PDF File 1412458.pdf | 753 kB | Shaun Ewing | Apr 11, 1922 00:00 |
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US-1412458-A // Message-registering system // Darrow Leo H. // American Telephone & Telegraph | |||
| Version 1 (current) | 753 kB | Shaun Ewing | Apr 11, 1922 00:00 | US-1412458-A // Message-registering system // Darrow Leo H. // American Telephone & Telegraph | ||||
| PDF File 1412490.pdf | 1.32 MB | Shaun Ewing | Apr 11, 1922 00:00 |
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US-1412490-A // Signaling system // Rhodes William A. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.32 MB | Shaun Ewing | Apr 11, 1922 00:00 | US-1412490-A // Signaling system // Rhodes William A. // American Telephone & Telegraph | ||||
| PDF File 1412853.pdf | 384 kB | Shaun Ewing | Apr 18, 1922 00:00 |
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US-1412853-A // Synchronizing system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 384 kB | Shaun Ewing | Apr 18, 1922 00:00 | US-1412853-A // Synchronizing system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1412908.pdf | 461 kB | Shaun Ewing | Apr 18, 1922 00:00 |
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US-1412908-A // Synchronizing system // Dyile Marl B. Van // American Telephone And Telecra | |||
| Version 1 (current) | 461 kB | Shaun Ewing | Apr 18, 1922 00:00 | US-1412908-A // Synchronizing system // Dyile Marl B. Van // American Telephone And Telecra | ||||
| PDF File 1413708.pdf | 2.01 MB | Shaun Ewing | Apr 25, 1922 00:00 |
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US-1413708-A // Signaling circuits for toll lines // Jr. John Davidson, // American Telephone & Telegraph | |||
| Version 1 (current) | 2.01 MB | Shaun Ewing | Apr 25, 1922 00:00 | US-1413708-A // Signaling circuits for toll lines // Jr. John Davidson, // American Telephone & Telegraph | ||||
| PDF File 1413753.pdf | 157 kB | Shaun Ewing | Apr 25, 1922 00:00 |
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US-1413753-A // Receiving device for signaling systems // Martin William H. // American Telephone & Telegraph | |||
| Version 1 (current) | 157 kB | Shaun Ewing | Apr 25, 1922 00:00 | US-1413753-A // Receiving device for signaling systems // Martin William H. // American Telephone & Telegraph |
