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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1494382.pdf | 517 kB | Shaun Ewing | May 20, 1924 00:00 |
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US-1494382-A // Means for preventing electrical interference // Shanck Roy B. // American Telephone & Telegraph | |||
| Version 1 (current) | 517 kB | Shaun Ewing | May 20, 1924 00:00 | US-1494382-A // Means for preventing electrical interference // Shanck Roy B. // American Telephone & Telegraph | ||||
| PDF File 1494347.pdf | 457 kB | Shaun Ewing | May 20, 1924 00:00 |
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US-1494347-A // High-speed radio system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 457 kB | Shaun Ewing | May 20, 1924 00:00 | US-1494347-A // High-speed radio system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1493619.pdf | 1.25 MB | Shaun Ewing | May 13, 1924 00:00 |
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US-1493619-A // Carrier-transmission system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 1.25 MB | Shaun Ewing | May 13, 1924 00:00 | US-1493619-A // Carrier-transmission system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1493600.pdf | 1.01 MB | Shaun Ewing | May 13, 1924 00:00 |
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US-1493600-A // Wave filter // Campbell George A. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.01 MB | Shaun Ewing | May 13, 1924 00:00 | US-1493600-A // Wave filter // Campbell George A. // American Telephone & Telegraph | ||||
| PDF File 1492868.pdf | 1.65 MB | Shaun Ewing | May 06, 1924 00:00 |
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US-1492868-A // Telephone system // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.65 MB | Shaun Ewing | May 06, 1924 00:00 | US-1492868-A // Telephone system // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1491867.pdf | 1.14 MB | Shaun Ewing | Apr 29, 1924 00:00 |
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US-1491867-A // Electrical switching device // Kuhn George W. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.14 MB | Shaun Ewing | Apr 29, 1924 00:00 | US-1491867-A // Electrical switching device // Kuhn George W. // American Telephone & Telegraph | ||||
| PDF File 1491848.pdf | 327 kB | Shaun Ewing | Apr 29, 1924 00:00 |
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US-1491848-A // Artificial line // Crisson George // American Telephone & Telegraph | |||
| Version 1 (current) | 327 kB | Shaun Ewing | Apr 29, 1924 00:00 | US-1491848-A // Artificial line // Crisson George // American Telephone & Telegraph | ||||
| PDF File 1490993.pdf | 325 kB | Shaun Ewing | Apr 22, 1924 00:00 |
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US-1490993-A // Apparatus and circuits for preventing side tone // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 325 kB | Shaun Ewing | Apr 22, 1924 00:00 | US-1490993-A // Apparatus and circuits for preventing side tone // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1490166.pdf | 935 kB | Shaun Ewing | Apr 15, 1924 00:00 |
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US-1490166-A // Carrier telegraph circuits // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 935 kB | Shaun Ewing | Apr 15, 1924 00:00 | US-1490166-A // Carrier telegraph circuits // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1490165.pdf | 1.13 MB | Shaun Ewing | Apr 15, 1924 00:00 |
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US-1490165-A // Balanced antenna system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 1.13 MB | Shaun Ewing | Apr 15, 1924 00:00 | US-1490165-A // Balanced antenna system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1488847.pdf | 1.89 MB | Shaun Ewing | Apr 01, 1924 00:00 |
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US-1488847-A // Telephone system // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.89 MB | Shaun Ewing | Apr 01, 1924 00:00 | US-1488847-A // Telephone system // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1488207.pdf | 584 kB | Shaun Ewing | Mar 25, 1924 00:00 |
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US-1488207-A // Signaling system // Kuhn George W. ; Ramsdell Roger G. // American Telephone & Telegraph | |||
| Version 1 (current) | 584 kB | Shaun Ewing | Mar 25, 1924 00:00 | US-1488207-A // Signaling system // Kuhn George W. ; Ramsdell Roger G. // American Telephone & Telegraph | ||||
| PDF File 1488167.pdf | 569 kB | Shaun Ewing | Mar 25, 1924 00:00 |
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US-1488167-A // Signaling system // Ramsdell Roger G. // American Telephone & Telegraph | |||
| Version 1 (current) | 569 kB | Shaun Ewing | Mar 25, 1924 00:00 | US-1488167-A // Signaling system // Ramsdell Roger G. // American Telephone & Telegraph | ||||
| PDF File 1485773.pdf | 400 kB | Shaun Ewing | Mar 04, 1924 00:00 |
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US-1485773-A // Radio calling or signaling // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 400 kB | Shaun Ewing | Mar 04, 1924 00:00 | US-1485773-A // Radio calling or signaling // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1484988.pdf | 555 kB | Shaun Ewing | Feb 26, 1924 00:00 |
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US-1484988-A // Public-address circuits // Hamilton Harold S. // American Telephone & Telegraph | |||
| Version 1 (current) | 555 kB | Shaun Ewing | Feb 26, 1924 00:00 | US-1484988-A // Public-address circuits // Hamilton Harold S. // American Telephone & Telegraph | ||||
| PDF File 1484707.pdf | 838 kB | Shaun Ewing | Feb 26, 1924 00:00 |
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US-1484707-A // Relay and circuits therefor // Gannett Danforth K. // American Telephone & Telegraph | |||
| Version 1 (current) | 838 kB | Shaun Ewing | Feb 26, 1924 00:00 | US-1484707-A // Relay and circuits therefor // Gannett Danforth K. // American Telephone & Telegraph | ||||
| PDF File 1483956.pdf | 525 kB | Shaun Ewing | Feb 19, 1924 00:00 |
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US-1483956-A // Telephone system // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 525 kB | Shaun Ewing | Feb 19, 1924 00:00 | US-1483956-A // Telephone system // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1483930.pdf | 300 kB | Shaun Ewing | Feb 19, 1924 00:00 |
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US-1483930-A // Transmission-equalization arrangement // Darrow Leo H. // American Telephone & Telegraph | |||
| Version 1 (current) | 300 kB | Shaun Ewing | Feb 19, 1924 00:00 | US-1483930-A // Transmission-equalization arrangement // Darrow Leo H. // American Telephone & Telegraph | ||||
| PDF File 1483172.pdf | 457 kB | Shaun Ewing | Feb 12, 1924 00:00 |
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US-1483172-A // Signaling system // Gannett Danforth K. // American Telephone & Telegraph | |||
| Version 1 (current) | 457 kB | Shaun Ewing | Feb 12, 1924 00:00 | US-1483172-A // Signaling system // Gannett Danforth K. // American Telephone & Telegraph | ||||
| PDF File 1483133.pdf | 526 kB | Shaun Ewing | Feb 12, 1924 00:00 |
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US-1483133-A // Electrical testing system // Toomey John F. ; Crisson George // American Telephone & Telegraph | |||
| Version 1 (current) | 526 kB | Shaun Ewing | Feb 12, 1924 00:00 | US-1483133-A // Electrical testing system // Toomey John F. ; Crisson George // American Telephone & Telegraph |
