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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| 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 1438988.pdf | 323 kB | Shaun Ewing | Dec 19, 1922 00:00 |
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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 1438270.pdf | 889 kB | Shaun Ewing | Dec 12, 1922 00:00 |
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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 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 1438219.pdf | 425 kB | Shaun Ewing | Dec 12, 1922 00:00 |
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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 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 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 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 1436733.pdf | 491 kB | Shaun Ewing | Nov 28, 1922 00:00 |
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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 1436683.pdf | 438 kB | Shaun Ewing | Nov 28, 1922 00:00 |
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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 1435980.pdf | 314 kB | Shaun Ewing | Nov 21, 1922 00:00 |
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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 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 1435348.pdf | 489 kB | Shaun Ewing | Nov 14, 1922 00:00 |
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US-1435348-A // Automatic ringing circuits // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 489 kB | Shaun Ewing | Nov 14, 1922 00:00 | US-1435348-A // Automatic ringing circuits // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1435328.pdf | 553 kB | Shaun Ewing | Nov 14, 1922 00:00 |
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US-1435328-A // Distortion-measuring apparatus // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 553 kB | Shaun Ewing | Nov 14, 1922 00:00 | US-1435328-A // Distortion-measuring apparatus // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1434555.pdf | 466 kB | Shaun Ewing | Nov 07, 1922 00:00 |
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US-1434555-A // Wave filter // Martin William H. // American Telephone & Telegraph | |||
| Version 1 (current) | 466 kB | Shaun Ewing | Nov 07, 1922 00:00 | US-1434555-A // Wave filter // Martin William H. // American Telephone & Telegraph | ||||
| PDF File 1434518.pdf | 1.54 MB | Shaun Ewing | Nov 07, 1922 00:00 |
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US-1434518-A // Telephone-exchange system // Bailey Rand S. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.54 MB | Shaun Ewing | Nov 07, 1922 00:00 | US-1434518-A // Telephone-exchange system // Bailey Rand S. // American Telephone & Telegraph | ||||
| PDF File 1433599.pdf | 510 kB | Shaun Ewing | Oct 31, 1922 00:00 |
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US-1433599-A // Radiocircuit // Bown Ralph // American Telephone & Telegraph | |||
| Version 1 (current) | 510 kB | Shaun Ewing | Oct 31, 1922 00:00 | US-1433599-A // Radiocircuit // Bown Ralph // American Telephone & Telegraph | ||||
| PDF File 1433594.pdf | 900 kB | Shaun Ewing | Oct 31, 1922 00:00 |
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US-1433594-A // Telephone-exchange system // Bailey Rand S. // American Telephone & Telegraph | |||
| Version 1 (current) | 900 kB | Shaun Ewing | Oct 31, 1922 00:00 | US-1433594-A // Telephone-exchange system // Bailey Rand S. // American Telephone & Telegraph | ||||
| PDF File 1432829.pdf | 476 kB | Shaun Ewing | Oct 24, 1922 00:00 |
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US-1432829-A // Electrical testing system // Best Fred H. // American Telephone & Telegraph | |||
| Version 1 (current) | 476 kB | Shaun Ewing | Oct 24, 1922 00:00 | US-1432829-A // Electrical testing system // Best Fred H. // American Telephone & Telegraph | ||||
| PDF File 1431995.pdf | 755 kB | Shaun Ewing | Oct 17, 1922 00:00 |
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US-1431995-A // Signaling apparatus and circuits // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 755 kB | Shaun Ewing | Oct 17, 1922 00:00 | US-1431995-A // Signaling apparatus and circuits // Toomey John F. // American Telephone & Telegraph |
