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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1814158.pdf | 518 kB | Shaun Ewing | Jul 14, 1931 00:00 |
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US-1814158-A // Signaling system // Holden William H. T. // American Telephone & Telegraph | |||
| Version 1 (current) | 518 kB | Shaun Ewing | Jul 14, 1931 00:00 | US-1814158-A // Signaling system // Holden William H. T. // American Telephone & Telegraph | ||||
| PDF File 1814898.pdf | 607 kB | Shaun Ewing | Jul 14, 1931 00:00 |
|
US-1814898-A // Measuring system // Deardorff Ralph W. // American Telephone & Telegraph | |||
| Version 1 (current) | 607 kB | Shaun Ewing | Jul 14, 1931 00:00 | US-1814898-A // Measuring system // Deardorff Ralph W. // American Telephone & Telegraph | ||||
| PDF File 1814956.pdf | 409 kB | Shaun Ewing | Jul 14, 1931 00:00 |
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US-1814956-A // Radio signaling system // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 409 kB | Shaun Ewing | Jul 14, 1931 00:00 | US-1814956-A // Radio signaling system // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1814987.pdf | 291 kB | Shaun Ewing | Jul 14, 1931 00:00 |
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US-1814987-A // Picture transmitting system // Weaver Allan ; Branson David Ernest // American Telephone & Telegraph | |||
| Version 1 (current) | 291 kB | Shaun Ewing | Jul 14, 1931 00:00 | US-1814987-A // Picture transmitting system // Weaver Allan ; Branson David Ernest // American Telephone & Telegraph | ||||
| PDF File 1815241.pdf | 905 kB | Shaun Ewing | Jul 21, 1931 00:00 |
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US-1815241-A // Transmission system // Crisson George // American Telephone & Telegraph | |||
| Version 1 (current) | 905 kB | Shaun Ewing | Jul 21, 1931 00:00 | US-1815241-A // Transmission system // Crisson George // American Telephone & Telegraph | ||||
| PDF File 1815254.pdf | 954 kB | Shaun Ewing | Jul 21, 1931 00:00 |
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US-1815254-A // Shunt type impedance equalizer for any smooth line // Hoyt Ray S. // American Telephone & Telegraph | |||
| Version 1 (current) | 954 kB | Shaun Ewing | Jul 21, 1931 00:00 | US-1815254-A // Shunt type impedance equalizer for any smooth line // Hoyt Ray S. // American Telephone & Telegraph | ||||
| PDF File 1815255.pdf | 566 kB | Shaun Ewing | Jul 21, 1931 00:00 |
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US-1815255-A // Impedance equalizer for any smooth line // Hoyt Ray S. // American Telephone & Telegraph | |||
| Version 1 (current) | 566 kB | Shaun Ewing | Jul 21, 1931 00:00 | US-1815255-A // Impedance equalizer for any smooth line // Hoyt Ray S. // American Telephone & Telegraph | ||||
| PDF File 1815256.pdf | 950 kB | Shaun Ewing | Jul 21, 1931 00:00 |
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US-1815256-A // Series type impedance equalizer for any smooth line // Hoyt Ray S. // American Telephone & Telegraph | |||
| Version 1 (current) | 950 kB | Shaun Ewing | Jul 21, 1931 00:00 | US-1815256-A // Series type impedance equalizer for any smooth line // Hoyt Ray S. // American Telephone & Telegraph | ||||
| PDF File 1815976.pdf | 308 kB | Shaun Ewing | Jul 28, 1931 00:00 |
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US-1815976-A // Coupling between carrier and transmission lines // Green Estill I. // American Telephone & Telegraph | |||
| Version 1 (current) | 308 kB | Shaun Ewing | Jul 28, 1931 00:00 | US-1815976-A // Coupling between carrier and transmission lines // Green Estill I. // American Telephone & Telegraph | ||||
| PDF File 1815986.pdf | 273 kB | Shaun Ewing | Jul 28, 1931 00:00 |
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US-1815986-A // Telegraph reading machine // Parker Ralzemond D. // American Telephone & Telegraph | |||
| Version 1 (current) | 273 kB | Shaun Ewing | Jul 28, 1931 00:00 | US-1815986-A // Telegraph reading machine // Parker Ralzemond D. // American Telephone & Telegraph | ||||
| PDF File 1815996.pdf | 398 kB | Shaun Ewing | Jul 28, 1931 00:00 |
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US-1815996-A // Telegraph reading machine // Weaver Allan // American Telephone & Telegraph | |||
| Version 1 (current) | 398 kB | Shaun Ewing | Jul 28, 1931 00:00 | US-1815996-A // Telegraph reading machine // Weaver Allan // American Telephone & Telegraph | ||||
| PDF File 1816634.pdf | 2.83 MB | Shaun Ewing | Jul 28, 1931 00:00 |
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US-1816634-A // Telephone exchange system // Carpenter Warren W. ; Dahl Jack F. ; Davis Richard C. ; Kittredge Linus E. // Bell Telephone Labor Inc ; American Telephone & Telegraph | |||
| Version 1 (current) | 2.83 MB | Shaun Ewing | Jul 28, 1931 00:00 | US-1816634-A // Telephone exchange system // Carpenter Warren W. ; Dahl Jack F. ; Davis Richard C. ; Kittredge Linus E. // Bell Telephone Labor Inc ; American Telephone & Telegraph | ||||
| PDF File 1816953.pdf | 574 kB | Shaun Ewing | Aug 04, 1931 00:00 |
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US-1816953-A // Privacy signaling system // Bown Ralph // American Telephone & Telegraph | |||
| Version 1 (current) | 574 kB | Shaun Ewing | Aug 04, 1931 00:00 | US-1816953-A // Privacy signaling system // Bown Ralph // American Telephone & Telegraph | ||||
| PDF File 1816958.pdf | 197 kB | Shaun Ewing | Aug 04, 1931 00:00 |
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US-1816958-A // Transmission measuring system // Clark Alva B. ; Best Fred H. // American Telephone & Telegraph | |||
| Version 1 (current) | 197 kB | Shaun Ewing | Aug 04, 1931 00:00 | US-1816958-A // Transmission measuring system // Clark Alva B. ; Best Fred H. // American Telephone & Telegraph | ||||
| PDF File 1816967.pdf | 502 kB | Shaun Ewing | Aug 04, 1931 00:00 |
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US-1816967-A // Telephone system // Green Irving W. // American Telephone & Telegraph | |||
| Version 1 (current) | 502 kB | Shaun Ewing | Aug 04, 1931 00:00 | US-1816967-A // Telephone system // Green Irving W. // American Telephone & Telegraph | ||||
| PDF File 1817949.pdf | 204 kB | Shaun Ewing | Aug 11, 1931 00:00 |
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US-1817949-A // Snatch block // Smith Temple C. // American Telephone & Telegraph | |||
| Version 1 (current) | 204 kB | Shaun Ewing | Aug 11, 1931 00:00 | US-1817949-A // Snatch block // Smith Temple C. // American Telephone & Telegraph | ||||
| PDF File 1817964.pdf | 1.18 MB | Shaun Ewing | Aug 11, 1931 00:00 |
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US-1817964-A // Concentric conductor transmission system // Carson John R. ; Mead Sallie P. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.18 MB | Shaun Ewing | Aug 11, 1931 00:00 | US-1817964-A // Concentric conductor transmission system // Carson John R. ; Mead Sallie P. // American Telephone & Telegraph | ||||
| PDF File 1818027.pdf | 740 kB | Shaun Ewing | Aug 11, 1931 00:00 |
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US-1818027-A // Concentric conductor system // Affel Herman A. ; Green Estill I. // American Telephone & Telegraph | |||
| Version 1 (current) | 740 kB | Shaun Ewing | Aug 11, 1931 00:00 | US-1818027-A // Concentric conductor system // Affel Herman A. ; Green Estill I. // American Telephone & Telegraph | ||||
| PDF File 1818064.pdf | 441 kB | Shaun Ewing | Aug 11, 1931 00:00 |
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US-1818064-A // Telephone system // Johnson Herbert B. ; Nostitz Erich Von // Bell Telephone Labor Inc ; American Telephone & Telegraph | |||
| Version 1 (current) | 441 kB | Shaun Ewing | Aug 11, 1931 00:00 | US-1818064-A // Telephone system // Johnson Herbert B. ; Nostitz Erich Von // Bell Telephone Labor Inc ; American Telephone & Telegraph | ||||
| PDF File 1819054.pdf | 496 kB | Shaun Ewing | Aug 18, 1931 00:00 |
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US-1819054-A // Carrier signaling system // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 496 kB | Shaun Ewing | Aug 18, 1931 00:00 | US-1819054-A // Carrier signaling system // Affel Herman A. // American Telephone & Telegraph |
