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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1877437.pdf | 703 kB | Shaun Ewing | Sept 13, 1932 00:00 |
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US-1877437-A // Start-stop telegraph system // Watson Edward F. // American Telephone & Telegraph | |||
| Version 1 (current) | 703 kB | Shaun Ewing | Sept 13, 1932 00:00 | US-1877437-A // Start-stop telegraph system // Watson Edward F. // American Telephone & Telegraph | ||||
| PDF File 1875157.pdf | 270 kB | Shaun Ewing | Aug 30, 1932 00:00 |
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US-1875157-A // Compression and expansion of range of energy level // Roberts Leland C. // American Telephone & Telegraph | |||
| Version 1 (current) | 270 kB | Shaun Ewing | Aug 30, 1932 00:00 | US-1875157-A // Compression and expansion of range of energy level // Roberts Leland C. // American Telephone & Telegraph | ||||
| PDF File 1875156.pdf | 284 kB | Shaun Ewing | Aug 30, 1932 00:00 |
|
US-1875156-A // Method and means for producing loss varying with energy level // Roberts Leland C. // American Telephone & Telegraph | |||
| Version 1 (current) | 284 kB | Shaun Ewing | Aug 30, 1932 00:00 | US-1875156-A // Method and means for producing loss varying with energy level // Roberts Leland C. // American Telephone & Telegraph | ||||
| PDF File 1874664.pdf | 1.46 MB | Shaun Ewing | Aug 30, 1932 00:00 |
|
US-1874664-A // Multiplex telegraphy // Vernam Gilbert S. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.46 MB | Shaun Ewing | Aug 30, 1932 00:00 | US-1874664-A // Multiplex telegraphy // Vernam Gilbert S. // American Telephone & Telegraph | ||||
| PDF File 1874563.pdf | 450 kB | Shaun Ewing | Aug 30, 1932 00:00 |
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US-1874563-A // System for producing high voltage direct currents // Martin De Loss K. // American Telephone & Telegraph | |||
| Version 1 (current) | 450 kB | Shaun Ewing | Aug 30, 1932 00:00 | US-1874563-A // System for producing high voltage direct currents // Martin De Loss K. // American Telephone & Telegraph | ||||
| PDF File 1874543.pdf | 321 kB | Shaun Ewing | Aug 30, 1932 00:00 |
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US-1874543-A // Cable-car // Kent Robert J. // American Telephone & Telegraph | |||
| Version 1 (current) | 321 kB | Shaun Ewing | Aug 30, 1932 00:00 | US-1874543-A // Cable-car // Kent Robert J. // American Telephone & Telegraph | ||||
| PDF File 1874530.pdf | 865 kB | Shaun Ewing | Aug 30, 1932 00:00 |
|
US-1874530-A // Transmission regulating system // Holden William H. T. // American Telephone & Telegraph | |||
| Version 1 (current) | 865 kB | Shaun Ewing | Aug 30, 1932 00:00 | US-1874530-A // Transmission regulating system // Holden William H. T. // American Telephone & Telegraph | ||||
| PDF File 1874472.pdf | 281 kB | Shaun Ewing | Aug 30, 1932 00:00 |
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US-1874472-A // Party telephone signaling arrangement // Edwards William H. // American Telephone & Telegraph | |||
| Version 1 (current) | 281 kB | Shaun Ewing | Aug 30, 1932 00:00 | US-1874472-A // Party telephone signaling arrangement // Edwards William H. // American Telephone & Telegraph | ||||
| PDF File 1874466.pdf | 508 kB | Shaun Ewing | Aug 30, 1932 00:00 |
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US-1874466-A // Transmission regulating system // Demarest Charles S. // American Telephone & Telegraph | |||
| Version 1 (current) | 508 kB | Shaun Ewing | Aug 30, 1932 00:00 | US-1874466-A // Transmission regulating system // Demarest Charles S. // American Telephone & Telegraph | ||||
| PDF File 1871986.pdf | 434 kB | Shaun Ewing | Aug 16, 1932 00:00 |
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US-1871986-A // Method and means for reducing distortion of vacuum tube amplifiers // Hamilton Harold S. // American Telephone & Telegraph | |||
| Version 1 (current) | 434 kB | Shaun Ewing | Aug 16, 1932 00:00 | US-1871986-A // Method and means for reducing distortion of vacuum tube amplifiers // Hamilton Harold S. // American Telephone & Telegraph | ||||
| PDF File 1871967.pdf | 511 kB | Shaun Ewing | Aug 16, 1932 00:00 |
|
US-1871967-A // Electrical testing system // Edwards Paul G. ; Henneberger Thomas C. // American Telephone & Telegraph | |||
| Version 1 (current) | 511 kB | Shaun Ewing | Aug 16, 1932 00:00 | US-1871967-A // Electrical testing system // Edwards Paul G. ; Henneberger Thomas C. // American Telephone & Telegraph | ||||
| PDF File 1871959.pdf | 512 kB | Shaun Ewing | Aug 16, 1932 00:00 |
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US-1871959-A // Transmission regulator system // Corderman Roy C. // American Telephone & Telegraph | |||
| Version 1 (current) | 512 kB | Shaun Ewing | Aug 16, 1932 00:00 | US-1871959-A // Transmission regulator system // Corderman Roy C. // American Telephone & Telegraph | ||||
| PDF File 1871944.pdf | 353 kB | Shaun Ewing | Aug 16, 1932 00:00 |
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US-1871944-A // Transmission measuring system // Best Fred H. // American Telephone & Telegraph | |||
| Version 1 (current) | 353 kB | Shaun Ewing | Aug 16, 1932 00:00 | US-1871944-A // Transmission measuring system // Best Fred H. // American Telephone & Telegraph | ||||
| PDF File 1871933.pdf | 975 kB | Shaun Ewing | Aug 16, 1932 00:00 |
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US-1871933-A // Telegraph printer // Watson Edward F. // American Telephone & Telegraph | |||
| Version 1 (current) | 975 kB | Shaun Ewing | Aug 16, 1932 00:00 | US-1871933-A // Telegraph printer // Watson Edward F. // American Telephone & Telegraph | ||||
| PDF File 1871923.pdf | 825 kB | Shaun Ewing | Aug 16, 1932 00:00 |
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US-1871923-A // Printing telegraph system // Singer Fred J. ; Gardner Leland A. // American Telephone & Telegraph | |||
| Version 1 (current) | 825 kB | Shaun Ewing | Aug 16, 1932 00:00 | US-1871923-A // Printing telegraph system // Singer Fred J. ; Gardner Leland A. // American Telephone & Telegraph | ||||
| PDF File 1871916.pdf | 448 kB | Shaun Ewing | Aug 16, 1932 00:00 |
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US-1871916-A // Signal monitoring device // Pierce Ralph E. // American Telephone & Telegraph | |||
| Version 1 (current) | 448 kB | Shaun Ewing | Aug 16, 1932 00:00 | US-1871916-A // Signal monitoring device // Pierce Ralph E. // American Telephone & Telegraph | ||||
| PDF File 1871906.pdf | 1.03 MB | Shaun Ewing | Aug 16, 1932 00:00 |
|
US-1871906-A // Concentric shield for cables // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 1.03 MB | Shaun Ewing | Aug 16, 1932 00:00 | US-1871906-A // Concentric shield for cables // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1871904.pdf | 930 kB | Shaun Ewing | Aug 16, 1932 00:00 |
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US-1871904-A // Frequency converter // Niles Eliot W. ; Edwards William H. // American Telephone & Telegraph | |||
| Version 1 (current) | 930 kB | Shaun Ewing | Aug 16, 1932 00:00 | US-1871904-A // Frequency converter // Niles Eliot W. ; Edwards William H. // American Telephone & Telegraph | ||||
| PDF File 1871886.pdf | 423 kB | Shaun Ewing | Aug 16, 1932 00:00 |
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US-1871886-A // Sound measuring system // Inglis Alfred H. ; Jr. Walter D. Goodale, ; Dietze Eginhard // American Telephone & Telegraph | |||
| Version 1 (current) | 423 kB | Shaun Ewing | Aug 16, 1932 00:00 | US-1871886-A // Sound measuring system // Inglis Alfred H. ; Jr. Walter D. Goodale, ; Dietze Eginhard // American Telephone & Telegraph | ||||
| PDF File 1870396.pdf | 1.06 MB | Shaun Ewing | Aug 09, 1932 00:00 |
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US-1870396-A // Telephone signaling system // Abraham Leonard G. ; Staples Elliot M. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.06 MB | Shaun Ewing | Aug 09, 1932 00:00 | US-1870396-A // Telephone signaling system // Abraham Leonard G. ; Staples Elliot M. // American Telephone & Telegraph |
