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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1624936.pdf | 472 kB | Shaun Ewing | Apr 19, 1927 00:00 |
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US-1624936-A // Telegraph system // Faries Charles Lee // American Telephone & Telegraph | |||
| Version 1 (current) | 472 kB | Shaun Ewing | Apr 19, 1927 00:00 | US-1624936-A // Telegraph system // Faries Charles Lee // American Telephone & Telegraph | ||||
| PDF File 1624057.pdf | 434 kB | Shaun Ewing | Apr 12, 1927 00:00 |
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US-1624057-A // Telephone substation circuits // Mckown Frederick W. ; Dietze Eginhard // American Telephone & Telegraph | |||
| Version 1 (current) | 434 kB | Shaun Ewing | Apr 12, 1927 00:00 | US-1624057-A // Telephone substation circuits // Mckown Frederick W. ; Dietze Eginhard // American Telephone & Telegraph | ||||
| PDF File 1624056.pdf | 442 kB | Shaun Ewing | Apr 12, 1927 00:00 |
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US-1624056-A // Telephone substation circuits // Mckown Frederick W. ; Dietze Eginhard // American Telephone & Telegraph | |||
| Version 1 (current) | 442 kB | Shaun Ewing | Apr 12, 1927 00:00 | US-1624056-A // Telephone substation circuits // Mckown Frederick W. ; Dietze Eginhard // American Telephone & Telegraph | ||||
| PDF File 1624023.pdf | 682 kB | Shaun Ewing | Apr 12, 1927 00:00 |
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US-1624023-A // Equalization of transmission // Strieby Maurice E. ; Fetter Charles H. // American Telephone & Telegraph | |||
| Version 1 (current) | 682 kB | Shaun Ewing | Apr 12, 1927 00:00 | US-1624023-A // Equalization of transmission // Strieby Maurice E. ; Fetter Charles H. // American Telephone & Telegraph | ||||
| PDF File 1623139.pdf | 2.12 MB | Shaun Ewing | Apr 05, 1927 00:00 |
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US-1623139-A // Telephone-exchange system // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 2.12 MB | Shaun Ewing | Apr 05, 1927 00:00 | US-1623139-A // Telephone-exchange system // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1623118.pdf | 1.95 MB | Shaun Ewing | Apr 05, 1927 00:00 |
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US-1623118-A // Telephone-exchange system // Jacobsen Emil // American Telephone & Telegraph | |||
| Version 1 (current) | 1.95 MB | Shaun Ewing | Apr 05, 1927 00:00 | US-1623118-A // Telephone-exchange system // Jacobsen Emil // American Telephone & Telegraph | ||||
| PDF File 1623095.pdf | 342 kB | Shaun Ewing | Apr 05, 1927 00:00 |
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US-1623095-A // Multiway connection // Crisson George ; Silent Harold C. // American Telephone & Telegraph | |||
| Version 1 (current) | 342 kB | Shaun Ewing | Apr 05, 1927 00:00 | US-1623095-A // Multiway connection // Crisson George ; Silent Harold C. // American Telephone & Telegraph | ||||
| PDF File 1622370.pdf | 603 kB | Shaun Ewing | Mar 29, 1927 00:00 |
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US-1622370-A // Multiple-antenna system for radiocommunication // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 603 kB | Shaun Ewing | Mar 29, 1927 00:00 | US-1622370-A // Multiple-antenna system for radiocommunication // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1622357.pdf | 455 kB | Shaun Ewing | Mar 29, 1927 00:00 |
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US-1622357-A // Electrical transmitting system // Staples Elliot M. // American Telephone & Telegraph | |||
| Version 1 (current) | 455 kB | Shaun Ewing | Mar 29, 1927 00:00 | US-1622357-A // Electrical transmitting system // Staples Elliot M. // American Telephone & Telegraph | ||||
| PDF File 1622297.pdf | 554 kB | Shaun Ewing | Mar 29, 1927 00:00 |
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US-1622297-A // Radio printing-telegraph system // Vernam Gilbert S. // American Telephone & Telegraph | |||
| Version 1 (current) | 554 kB | Shaun Ewing | Mar 29, 1927 00:00 | US-1622297-A // Radio printing-telegraph system // Vernam Gilbert S. // American Telephone & Telegraph | ||||
| PDF File 1621557.pdf | 287 kB | Shaun Ewing | Mar 22, 1927 00:00 |
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US-1621557-A // Combined resonant shunt device for telegraph circuits // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 287 kB | Shaun Ewing | Mar 22, 1927 00:00 | US-1621557-A // Combined resonant shunt device for telegraph circuits // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1621533.pdf | 189 kB | Shaun Ewing | Mar 22, 1927 00:00 |
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US-1621533-A // Alternating-current relay // Grimes David // American Telephone & Telegraph | |||
| Version 1 (current) | 189 kB | Shaun Ewing | Mar 22, 1927 00:00 | US-1621533-A // Alternating-current relay // Grimes David // American Telephone & Telegraph | ||||
| PDF File 1621530.pdf | 142 kB | Shaun Ewing | Mar 22, 1927 00:00 |
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US-1621530-A // Dead-ending clamp // Fitzpatrick Paul G. // American Telephone & Telegraph | |||
| Version 1 (current) | 142 kB | Shaun Ewing | Mar 22, 1927 00:00 | US-1621530-A // Dead-ending clamp // Fitzpatrick Paul G. // American Telephone & Telegraph | ||||
| PDF File 1621480.pdf | 611 kB | Shaun Ewing | Mar 15, 1927 00:00 |
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US-1621480-A // Testing system // Ewing Claude // American Telephone & Telegraph | |||
| Version 1 (current) | 611 kB | Shaun Ewing | Mar 15, 1927 00:00 | US-1621480-A // Testing system // Ewing Claude // American Telephone & Telegraph | ||||
| PDF File 1620733.pdf | 736 kB | Shaun Ewing | Mar 15, 1927 00:00 |
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US-1620733-A // Telephone system // Nelson Stanley F. // American Telephone & Telegraph | |||
| Version 1 (current) | 736 kB | Shaun Ewing | Mar 15, 1927 00:00 | US-1620733-A // Telephone system // Nelson Stanley F. // American Telephone & Telegraph | ||||
| PDF File 1620012.pdf | 3.06 MB | Shaun Ewing | Mar 08, 1927 00:00 |
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US-1620012-A // Telephone-exchange system // Dunham Bert G. ; Haines William T. // American Telephone & Telegraph ; Western Electric Co | |||
| Version 1 (current) | 3.06 MB | Shaun Ewing | Mar 08, 1927 00:00 | US-1620012-A // Telephone-exchange system // Dunham Bert G. ; Haines William T. // American Telephone & Telegraph ; Western Electric Co | ||||
| PDF File 1619897.pdf | 1.00 MB | Shaun Ewing | Mar 08, 1927 00:00 |
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US-1619897-A // Printing-telegraph-exchange system // Vernam Gilbert S. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.00 MB | Shaun Ewing | Mar 08, 1927 00:00 | US-1619897-A // Printing-telegraph-exchange system // Vernam Gilbert S. // American Telephone & Telegraph | ||||
| PDF File 1619891.pdf | 1.31 MB | Shaun Ewing | Mar 08, 1927 00:00 |
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US-1619891-A // Echo-suppressor relay // Silent Harold C. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.31 MB | Shaun Ewing | Mar 08, 1927 00:00 | US-1619891-A // Echo-suppressor relay // Silent Harold C. // American Telephone & Telegraph | ||||
| PDF File 1619882.pdf | 203 kB | Shaun Ewing | Mar 08, 1927 00:00 |
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US-1619882-A // Means for transferring high-frequency energy // Ohl Russill S. // American Telephone & Telegraph | |||
| Version 1 (current) | 203 kB | Shaun Ewing | Mar 08, 1927 00:00 | US-1619882-A // Means for transferring high-frequency energy // Ohl Russill S. // American Telephone & Telegraph | ||||
| PDF File 1619085.pdf | 572 kB | Shaun Ewing | Mar 01, 1927 00:00 |
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US-1619085-A // Carrier-current signaling system // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 572 kB | Shaun Ewing | Mar 01, 1927 00:00 | US-1619085-A // Carrier-current signaling system // Nyquist Harry // American Telephone & Telegraph |
