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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1473674.pdf | 389 kB | Shaun Ewing | Nov 13, 1923 00:00 |
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US-1473674-A // Means for and method of modulation // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 389 kB | Shaun Ewing | Nov 13, 1923 00:00 | US-1473674-A // Means for and method of modulation // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1473671.pdf | 2.38 MB | Shaun Ewing | Nov 13, 1923 00:00 |
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US-1473671-A // Telephone-exchange system // Jr. John Davidson, // American Telephone & Telegraph | |||
| Version 1 (current) | 2.38 MB | Shaun Ewing | Nov 13, 1923 00:00 | US-1473671-A // Telephone-exchange system // Jr. John Davidson, // American Telephone & Telegraph | ||||
| PDF File 1472822.pdf | 583 kB | Shaun Ewing | Nov 06, 1923 00:00 |
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US-1472822-A // Calling arrangement for radio systems // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 583 kB | Shaun Ewing | Nov 06, 1923 00:00 | US-1472822-A // Calling arrangement for radio systems // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1472821.pdf | 974 kB | Shaun Ewing | Nov 06, 1923 00:00 |
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US-1472821-A // Ringing channel for multiplex telephone systems // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 974 kB | Shaun Ewing | Nov 06, 1923 00:00 | US-1472821-A // Ringing channel for multiplex telephone systems // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1472087.pdf | 330 kB | Shaun Ewing | Oct 30, 1923 00:00 |
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US-1472087-A // Gas-heated soldering iron // Pike Vernon B. // American Telephone & Telegraph | |||
| Version 1 (current) | 330 kB | Shaun Ewing | Oct 30, 1923 00:00 | US-1472087-A // Gas-heated soldering iron // Pike Vernon B. // American Telephone & Telegraph | ||||
| PDF File 1472035.pdf | 797 kB | Shaun Ewing | Oct 30, 1923 00:00 |
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US-1472035-A // Means for signaling over multiplex transmission channels // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 797 kB | Shaun Ewing | Oct 30, 1923 00:00 | US-1472035-A // Means for signaling over multiplex transmission channels // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1471388.pdf | 556 kB | Shaun Ewing | Oct 23, 1923 00:00 |
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US-1471388-A // Signaling circuit // Dietze Eginhard // American Telephone & Telegraph | |||
| Version 1 (current) | 556 kB | Shaun Ewing | Oct 23, 1923 00:00 | US-1471388-A // Signaling circuit // Dietze Eginhard // American Telephone & Telegraph | ||||
| PDF File 1471383.pdf | 826 kB | Shaun Ewing | Oct 23, 1923 00:00 |
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US-1471383-A // Method of and means for measuring unbalance // Clark Alva B. // American Telephone & Telegraph | |||
| Version 1 (current) | 826 kB | Shaun Ewing | Oct 23, 1923 00:00 | US-1471383-A // Method of and means for measuring unbalance // Clark Alva B. // American Telephone & Telegraph | ||||
| PDF File 1470632.pdf | 401 kB | Shaun Ewing | Oct 16, 1923 00:00 |
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US-1470632-A // Equalizing transmission // Martin William H. // American Telephone & Telegraph | |||
| Version 1 (current) | 401 kB | Shaun Ewing | Oct 16, 1923 00:00 | US-1470632-A // Equalizing transmission // Martin William H. // American Telephone & Telegraph | ||||
| PDF File 1470611.pdf | 747 kB | Shaun Ewing | Oct 16, 1923 00:00 |
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US-1470611-A // Telephone-exchange system // Bailey Rand S. // American Telephone & Telegraph | |||
| Version 1 (current) | 747 kB | Shaun Ewing | Oct 16, 1923 00:00 | US-1470611-A // Telephone-exchange system // Bailey Rand S. // American Telephone & Telegraph | ||||
| PDF File 1470594.pdf | 287 kB | Shaun Ewing | Oct 16, 1923 00:00 |
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US-1470594-A // Secret signaling system // Branson David E. // American Telephone & Telegraph | |||
| Version 1 (current) | 287 kB | Shaun Ewing | Oct 16, 1923 00:00 | US-1470594-A // Secret signaling system // Branson David E. // American Telephone & Telegraph | ||||
| PDF File 1469259.pdf | 1.50 MB | Shaun Ewing | Oct 02, 1923 00:00 |
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US-1469259-A // Carrier telegraph circuits // Hamilton Baxter P. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.50 MB | Shaun Ewing | Oct 02, 1923 00:00 | US-1469259-A // Carrier telegraph circuits // Hamilton Baxter P. // American Telephone & Telegraph | ||||
| PDF File 1469254.pdf | 1.58 MB | Shaun Ewing | Oct 02, 1923 00:00 |
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US-1469254-A // Carrier telegraph circuits // Deardorff Ralph Warner // American Telephone & Telegraph | |||
| Version 1 (current) | 1.58 MB | Shaun Ewing | Oct 02, 1923 00:00 | US-1469254-A // Carrier telegraph circuits // Deardorff Ralph Warner // American Telephone & Telegraph | ||||
| PDF File 1469253.pdf | 1.10 MB | Shaun Ewing | Oct 02, 1923 00:00 |
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US-1469253-A // Carrier telegraph circuits // Deardorff Ralph Warner // American Telephone & Telegraph | |||
| Version 1 (current) | 1.10 MB | Shaun Ewing | Oct 02, 1923 00:00 | US-1469253-A // Carrier telegraph circuits // Deardorff Ralph Warner // American Telephone & Telegraph | ||||
| PDF File 1468687.pdf | 798 kB | Shaun Ewing | Sept 25, 1923 00:00 |
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US-1468687-A // Transmission regulation // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 798 kB | Shaun Ewing | Sept 25, 1923 00:00 | US-1468687-A // Transmission regulation // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1468101.pdf | 514 kB | Shaun Ewing | Sept 18, 1923 00:00 |
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US-1468101-A // Testing circuits // Clark Alva B. ; Crisson George // American Telephone & Telegraph | |||
| Version 1 (current) | 514 kB | Shaun Ewing | Sept 18, 1923 00:00 | US-1468101-A // Testing circuits // Clark Alva B. ; Crisson George // American Telephone & Telegraph | ||||
| PDF File 1468096.pdf | 570 kB | Shaun Ewing | Sept 18, 1923 00:00 |
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US-1468096-A // Storage-battery circuit // Young Rowland L. // American Telephone & Telegraph | |||
| Version 1 (current) | 570 kB | Shaun Ewing | Sept 18, 1923 00:00 | US-1468096-A // Storage-battery circuit // Young Rowland L. // American Telephone & Telegraph | ||||
| PDF File 1467458.pdf | 550 kB | Shaun Ewing | Sept 11, 1923 00:00 |
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US-1467458-A // Signaling circuits // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 550 kB | Shaun Ewing | Sept 11, 1923 00:00 | US-1467458-A // Signaling circuits // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1467360.pdf | 290 kB | Shaun Ewing | Sept 11, 1923 00:00 |
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US-1467360-A // Wave filter // Elsasser Henry W. // American Telephone & Telegraph | |||
| Version 1 (current) | 290 kB | Shaun Ewing | Sept 11, 1923 00:00 | US-1467360-A // Wave filter // Elsasser Henry W. // American Telephone & Telegraph | ||||
| PDF File 1466708.pdf | 814 kB | Shaun Ewing | Sept 04, 1923 00:00 |
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US-1466708-A // Transmission system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 814 kB | Shaun Ewing | Sept 04, 1923 00:00 | US-1466708-A // Transmission system // Espenschied Lloyd // American Telephone & Telegraph |
