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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1400776.pdf | 340 kB | Shaun Ewing | Dec 20, 1921 00:00 |
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US-1400776-A // Deflection-dynamometer // Smith Temple C. // American Telephone & Telegraph | |||
| Version 1 (current) | 340 kB | Shaun Ewing | Dec 20, 1921 00:00 | US-1400776-A // Deflection-dynamometer // Smith Temple C. // American Telephone & Telegraph | ||||
| PDF File 1400732.pdf | 1.13 MB | Shaun Ewing | Dec 20, 1921 00:00 |
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US-1400732-A // Signaling system // Demarest Charles S. ; Jr. John Davidson, // American Telephone & Telegraph | |||
| Version 1 (current) | 1.13 MB | Shaun Ewing | Dec 20, 1921 00:00 | US-1400732-A // Signaling system // Demarest Charles S. ; Jr. John Davidson, // American Telephone & Telegraph | ||||
| PDF File 1400583.pdf | 620 kB | Shaun Ewing | Dec 20, 1921 00:00 |
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US-1400583-A // Telephone system // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 620 kB | Shaun Ewing | Dec 20, 1921 00:00 | US-1400583-A // Telephone system // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1400189.pdf | 913 kB | Shaun Ewing | Dec 13, 1921 00:00 |
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US-1400189-A // Means for controlling repeater-circuits // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 913 kB | Shaun Ewing | Dec 13, 1921 00:00 | US-1400189-A // Means for controlling repeater-circuits // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1399695.pdf | 796 kB | Shaun Ewing | Dec 06, 1921 00:00 |
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US-1399695-A // Electrical testing-circuits // Demarest Charles S. // American Telephone & Telegraph | |||
| Version 1 (current) | 796 kB | Shaun Ewing | Dec 06, 1921 00:00 | US-1399695-A // Electrical testing-circuits // Demarest Charles S. // American Telephone & Telegraph | ||||
| PDF File 1399226.pdf | 413 kB | Shaun Ewing | Dec 06, 1921 00:00 |
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US-1399226-A // Electrothermal relay // Rhodes William A. // American Telephone & Telegraph | |||
| Version 1 (current) | 413 kB | Shaun Ewing | Dec 06, 1921 00:00 | US-1399226-A // Electrothermal relay // Rhodes William A. // American Telephone & Telegraph | ||||
| PDF File 1398287.pdf | 284 kB | Shaun Ewing | Nov 29, 1921 00:00 |
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US-1398287-A // Selective signaling system // Thompson George K. // American Telephone & Telegraph | |||
| Version 1 (current) | 284 kB | Shaun Ewing | Nov 29, 1921 00:00 | US-1398287-A // Selective signaling system // Thompson George K. // American Telephone & Telegraph | ||||
| PDF File 1398266.pdf | 476 kB | Shaun Ewing | Nov 29, 1921 00:00 |
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US-1398266-A // Electrical indicating and measuring device // Hitchcock Harry W. // American Telephone & Telegraph | |||
| Version 1 (current) | 476 kB | Shaun Ewing | Nov 29, 1921 00:00 | US-1398266-A // Electrical indicating and measuring device // Hitchcock Harry W. // American Telephone & Telegraph | ||||
| PDF File 1397991.pdf | 580 kB | Shaun Ewing | Nov 22, 1921 00:00 |
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US-1397991-A // Message-registering system // Thompson George K. // American Telephone & Telegraph | |||
| Version 1 (current) | 580 kB | Shaun Ewing | Nov 22, 1921 00:00 | US-1397991-A // Message-registering system // Thompson George K. // American Telephone & Telegraph | ||||
| PDF File 1397975.pdf | 444 kB | Shaun Ewing | Nov 22, 1921 00:00 |
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US-1397975-A // Electrical testing system // Kuhn George W. // American Telephone & Telegraph | |||
| Version 1 (current) | 444 kB | Shaun Ewing | Nov 22, 1921 00:00 | US-1397975-A // Electrical testing system // Kuhn George W. // American Telephone & Telegraph | ||||
| PDF File 1397228.pdf | 467 kB | Shaun Ewing | Nov 15, 1921 00:00 |
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US-1397228-A // Electrical measuring apparatus // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 467 kB | Shaun Ewing | Nov 15, 1921 00:00 | US-1397228-A // Electrical measuring apparatus // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1397093.pdf | 952 kB | Shaun Ewing | Nov 15, 1921 00:00 |
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US-1397093-A // Radiorepeating system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 952 kB | Shaun Ewing | Nov 15, 1921 00:00 | US-1397093-A // Radiorepeating system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1395854.pdf | 682 kB | Shaun Ewing | Nov 01, 1921 00:00 |
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US-1395854-A // Balancing signaling systems // Martin William H. // American Telephone & Telegraph | |||
| Version 1 (current) | 682 kB | Shaun Ewing | Nov 01, 1921 00:00 | US-1395854-A // Balancing signaling systems // Martin William H. // American Telephone & Telegraph | ||||
| PDF File 1395007.pdf | 438 kB | Shaun Ewing | Oct 25, 1921 00:00 |
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US-1395007-A // Telegraph system // Post Arthur W. // American Telephone & Telegraph | |||
| Version 1 (current) | 438 kB | Shaun Ewing | Oct 25, 1921 00:00 | US-1395007-A // Telegraph system // Post Arthur W. // American Telephone & Telegraph | ||||
| PDF File 1394190.pdf | 468 kB | Shaun Ewing | Oct 18, 1921 00:00 |
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US-1394190-A // Testing system for four-wire circuits // Demarest Charles S. // American Telephone & Telegraph | |||
| Version 1 (current) | 468 kB | Shaun Ewing | Oct 18, 1921 00:00 | US-1394190-A // Testing system for four-wire circuits // Demarest Charles S. // American Telephone & Telegraph | ||||
| PDF File 1394189.pdf | 950 kB | Shaun Ewing | Oct 18, 1921 00:00 |
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US-1394189-A // Repeater-controlling system for four-wire circuits // Demarest Charles S. // American Telephone & Telegraph | |||
| Version 1 (current) | 950 kB | Shaun Ewing | Oct 18, 1921 00:00 | US-1394189-A // Repeater-controlling system for four-wire circuits // Demarest Charles S. // American Telephone & Telegraph | ||||
| PDF File 1394062.pdf | 1.22 MB | Shaun Ewing | Oct 18, 1921 00:00 |
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US-1394062-A // Means for and method of reducing cross-talk in four-wire circuits // Blackwell Otto B. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.22 MB | Shaun Ewing | Oct 18, 1921 00:00 | US-1394062-A // Means for and method of reducing cross-talk in four-wire circuits // Blackwell Otto B. // American Telephone & Telegraph | ||||
| PDF File 1392179.pdf | 1.76 MB | Shaun Ewing | Sept 27, 1921 00:00 |
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US-1392179-A // Operator's trunk-circuit // Kuhn George W. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.76 MB | Shaun Ewing | Sept 27, 1921 00:00 | US-1392179-A // Operator's trunk-circuit // Kuhn George W. // American Telephone & Telegraph | ||||
| PDF File 1392152.pdf | 447 kB | Shaun Ewing | Sept 27, 1921 00:00 |
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US-1392152-A // Multiple-station transmission-circuits // Harden William H. // American Telephone & Telegraph | |||
| Version 1 (current) | 447 kB | Shaun Ewing | Sept 27, 1921 00:00 | US-1392152-A // Multiple-station transmission-circuits // Harden William H. // American Telephone & Telegraph | ||||
| PDF File 1391552.pdf | 641 kB | Shaun Ewing | Sept 20, 1921 00:00 |
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US-1391552-A // Repeater cord-circuits // Loynes Owen H. ; Rose Arthur F. // American Telephone & Telegraph | |||
| Version 1 (current) | 641 kB | Shaun Ewing | Sept 20, 1921 00:00 | US-1391552-A // Repeater cord-circuits // Loynes Owen H. ; Rose Arthur F. // American Telephone & Telegraph |
