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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1435968.pdf | 316 kB | Shaun Ewing | Nov 21, 1922 00:00 |
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US-1435968-A // Telephone trunk circuits // Kuhn George W. ; Lundius Eric R. // American Telephone And Telecra | |||
| Version 1 (current) | 316 kB | Shaun Ewing | Nov 21, 1922 00:00 | US-1435968-A // Telephone trunk circuits // Kuhn George W. ; Lundius Eric R. // American Telephone And Telecra | ||||
| PDF File 1435980.pdf | 314 kB | Shaun Ewing | Nov 21, 1922 00:00 |
|
US-1435980-A // Means for and method of reducing cross talk in four-wire circuits // Renshaw Richard A. // American Telephone And Telecra | |||
| Version 1 (current) | 314 kB | Shaun Ewing | Nov 21, 1922 00:00 | US-1435980-A // Means for and method of reducing cross talk in four-wire circuits // Renshaw Richard A. // American Telephone And Telecra | ||||
| PDF File 1436683.pdf | 438 kB | Shaun Ewing | Nov 28, 1922 00:00 |
|
US-1436683-A // Battery supply circuits for repeaters // Rose Arthur F. // American Telephone ; Telegraph Company | |||
| Version 1 (current) | 438 kB | Shaun Ewing | Nov 28, 1922 00:00 | US-1436683-A // Battery supply circuits for repeaters // Rose Arthur F. // American Telephone ; Telegraph Company | ||||
| PDF File 1436733.pdf | 491 kB | Shaun Ewing | Nov 28, 1922 00:00 |
|
US-1436733-A // Carriage for conveying drums of electric cables // Smith Temple C. // American Telephone & Telegraph | |||
| Version 1 (current) | 491 kB | Shaun Ewing | Nov 28, 1922 00:00 | US-1436733-A // Carriage for conveying drums of electric cables // Smith Temple C. // American Telephone & Telegraph | ||||
| PDF File 1437457.pdf | 356 kB | Shaun Ewing | Dec 05, 1922 00:00 |
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US-1437457-A // Signaling apparatus and circuits // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 356 kB | Shaun Ewing | Dec 05, 1922 00:00 | US-1437457-A // Signaling apparatus and circuits // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1438217.pdf | 961 kB | Shaun Ewing | Dec 12, 1922 00:00 |
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US-1438217-A // Means for and method of regulating the transmission over electric circuits // Clark Alva B. // American Telephone & Telegraph | |||
| Version 1 (current) | 961 kB | Shaun Ewing | Dec 12, 1922 00:00 | US-1438217-A // Means for and method of regulating the transmission over electric circuits // Clark Alva B. // American Telephone & Telegraph | ||||
| PDF File 1438218.pdf | 951 kB | Shaun Ewing | Dec 12, 1922 00:00 |
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US-1438218-A // Means for and method of regulating the transmission over electric circuits // Clark Alva B. // American Telephone & Telegraph | |||
| Version 1 (current) | 951 kB | Shaun Ewing | Dec 12, 1922 00:00 | US-1438218-A // Means for and method of regulating the transmission over electric circuits // Clark Alva B. // American Telephone & Telegraph | ||||
| PDF File 1438219.pdf | 425 kB | Shaun Ewing | Dec 12, 1922 00:00 |
|
US-1438219-A // Means for and method of regulating the transmission over electric circuits // Clark Alva B. // American Telephone & Telegraph | |||
| Version 1 (current) | 425 kB | Shaun Ewing | Dec 12, 1922 00:00 | US-1438219-A // Means for and method of regulating the transmission over electric circuits // Clark Alva B. // American Telephone & Telegraph | ||||
| PDF File 1438220.pdf | 771 kB | Shaun Ewing | Dec 12, 1922 00:00 |
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US-1438220-A // Means for and method of regulating the transmission over electric circuits // Clark Alva B. // American Telephone & Telegraph | |||
| Version 1 (current) | 771 kB | Shaun Ewing | Dec 12, 1922 00:00 | US-1438220-A // Means for and method of regulating the transmission over electric circuits // Clark Alva B. // American Telephone & Telegraph | ||||
| PDF File 1438270.pdf | 889 kB | Shaun Ewing | Dec 12, 1922 00:00 |
|
US-1438270-A // Means for regulating the transmission over four-wire circuits // Shackleton Samuel P. // American Telephone & Telegraph | |||
| Version 1 (current) | 889 kB | Shaun Ewing | Dec 12, 1922 00:00 | US-1438270-A // Means for regulating the transmission over four-wire circuits // Shackleton Samuel P. // American Telephone & Telegraph | ||||
| PDF File 1438988.pdf | 323 kB | Shaun Ewing | Dec 19, 1922 00:00 |
|
US-1438988-A // High-frequency translating circuits // Espenschied Lloyd ; Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 323 kB | Shaun Ewing | Dec 19, 1922 00:00 | US-1438988-A // High-frequency translating circuits // Espenschied Lloyd ; Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1438989.pdf | 352 kB | Shaun Ewing | Dec 19, 1922 00:00 |
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US-1438989-A // High-frequency translating circuits // Espenschied Lloyd ; Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 352 kB | Shaun Ewing | Dec 19, 1922 00:00 | US-1438989-A // High-frequency translating circuits // Espenschied Lloyd ; Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1439723.pdf | 468 kB | Shaun Ewing | Dec 26, 1922 00:00 |
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US-1439723-A // Numbering system for automatic telephone exchanges // Blauvelt William G. // American Telephone & Telegraph | |||
| Version 1 (current) | 468 kB | Shaun Ewing | Dec 26, 1922 00:00 | US-1439723-A // Numbering system for automatic telephone exchanges // Blauvelt William G. // American Telephone & Telegraph | ||||
| PDF File 1439772.pdf | 576 kB | Shaun Ewing | Dec 26, 1922 00:00 |
|
US-1439772-A // Signaling apparatus and circuits // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 576 kB | Shaun Ewing | Dec 26, 1922 00:00 | US-1439772-A // Signaling apparatus and circuits // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1440407.pdf | 253 kB | Shaun Ewing | Jan 02, 1923 00:00 |
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US-1440407-A // Detecting ciscuits // Osborne Harold S. // American Telephone & Telegraph | |||
| Version 1 (current) | 253 kB | Shaun Ewing | Jan 02, 1923 00:00 | US-1440407-A // Detecting ciscuits // Osborne Harold S. // American Telephone & Telegraph | ||||
| PDF File 1441270.pdf | 421 kB | Shaun Ewing | Jan 09, 1923 00:00 |
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US-1441270-A // Transmission system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 421 kB | Shaun Ewing | Jan 09, 1923 00:00 | US-1441270-A // Transmission system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1441827.pdf | 790 kB | Shaun Ewing | Jan 09, 1923 00:00 |
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US-1441827-A // Signaling system // Blackwell Otto B. // American Telephone & Telegraph | |||
| Version 1 (current) | 790 kB | Shaun Ewing | Jan 09, 1923 00:00 | US-1441827-A // Signaling system // Blackwell Otto B. // American Telephone & Telegraph | ||||
| PDF File 1442819.pdf | 624 kB | Shaun Ewing | Jan 23, 1923 00:00 |
|
US-1442819-A // Ciphering machine // Parker Ralzemond D. // American Telephone & Telegraph | |||
| Version 1 (current) | 624 kB | Shaun Ewing | Jan 23, 1923 00:00 | US-1442819-A // Ciphering machine // Parker Ralzemond D. // American Telephone & Telegraph | ||||
| PDF File 1443985.pdf | 347 kB | Shaun Ewing | Feb 06, 1923 00:00 |
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US-1443985-A // Signaling system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 347 kB | Shaun Ewing | Feb 06, 1923 00:00 | US-1443985-A // Signaling system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1444830.pdf | 864 kB | Shaun Ewing | Feb 13, 1923 00:00 |
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US-1444830-A // Transmission-controlling apparatus // Demarest Charles S. // American Telephone & Telegraph | |||
| Version 1 (current) | 864 kB | Shaun Ewing | Feb 13, 1923 00:00 | US-1444830-A // Transmission-controlling apparatus // Demarest Charles S. // American Telephone & Telegraph |
