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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1754240.pdf | 674 kB | Shaun Ewing | Apr 15, 1930 00:00 |
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US-1754240-A // Composite telephone and telegraph system // Nyquist Harry ; Brand Smart // American Telephone & Telegraph | |||
| Version 1 (current) | 674 kB | Shaun Ewing | Apr 15, 1930 00:00 | US-1754240-A // Composite telephone and telegraph system // Nyquist Harry ; Brand Smart // American Telephone & Telegraph | ||||
| PDF File 1754239.pdf | 387 kB | Shaun Ewing | Apr 15, 1930 00:00 |
|
US-1754239-A // Telephone signaling system // Niles Eliot W. ; Edwards William H. // American Telephone & Telegraph | |||
| Version 1 (current) | 387 kB | Shaun Ewing | Apr 15, 1930 00:00 | US-1754239-A // Telephone signaling system // Niles Eliot W. ; Edwards William H. // American Telephone & Telegraph | ||||
| PDF File 1754238.pdf | 320 kB | Shaun Ewing | Apr 15, 1930 00:00 |
|
US-1754238-A // Coin-box device // Niles Eliot W. ; Edwards William H. // American Telephone & Telegraph | |||
| Version 1 (current) | 320 kB | Shaun Ewing | Apr 15, 1930 00:00 | US-1754238-A // Coin-box device // Niles Eliot W. ; Edwards William H. // American Telephone & Telegraph | ||||
| PDF File 1754234.pdf | 332 kB | Shaun Ewing | Apr 15, 1930 00:00 |
|
US-1754234-A // Vacuum tube // Holden William H. T. // American Telephone & Telegraph | |||
| Version 1 (current) | 332 kB | Shaun Ewing | Apr 15, 1930 00:00 | US-1754234-A // Vacuum tube // Holden William H. T. // American Telephone & Telegraph | ||||
| PDF File 1754224.pdf | 819 kB | Shaun Ewing | Apr 15, 1930 00:00 |
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US-1754224-A // Signaling system // Jr. John Davidson, ; Moody Dwight L. // American Telephone & Telegraph | |||
| Version 1 (current) | 819 kB | Shaun Ewing | Apr 15, 1930 00:00 | US-1754224-A // Signaling system // Jr. John Davidson, ; Moody Dwight L. // American Telephone & Telegraph | ||||
| PDF File 1753869.pdf | 599 kB | Shaun Ewing | Apr 08, 1930 00:00 |
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US-1753869-A // Method and means for preparing insulating sleeves // Reed Thomas C. ; Odell Aubrey D. // American Telephone & Telegraph | |||
| Version 1 (current) | 599 kB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753869-A // Method and means for preparing insulating sleeves // Reed Thomas C. ; Odell Aubrey D. // American Telephone & Telegraph | ||||
| PDF File 1753715.pdf | 198 kB | Shaun Ewing | Apr 08, 1930 00:00 |
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US-1753715-A // Short-wave radio signaling system // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 198 kB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753715-A // Short-wave radio signaling system // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1753446.pdf | 346 kB | Shaun Ewing | Apr 08, 1930 00:00 |
|
US-1753446-A // Signaling system // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 346 kB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753446-A // Signaling system // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1753445.pdf | 456 kB | Shaun Ewing | Apr 08, 1930 00:00 |
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US-1753445-A // Signaling system // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 456 kB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753445-A // Signaling system // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1753444.pdf | 437 kB | Shaun Ewing | Apr 08, 1930 00:00 |
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US-1753444-A // Signaling system // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 437 kB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753444-A // Signaling system // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1753256.pdf | 210 kB | Shaun Ewing | Apr 08, 1930 00:00 |
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US-1753256-A // Alternating-current relay // Thorp Vaughn P. // American Telephone & Telegraph | |||
| Version 1 (current) | 210 kB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753256-A // Alternating-current relay // Thorp Vaughn P. // American Telephone & Telegraph | ||||
| PDF File 1753231.pdf | 394 kB | Shaun Ewing | Apr 08, 1930 00:00 |
|
US-1753231-A // Meter for transmission testing // Best Fred H. // American Telephone & Telegraph | |||
| Version 1 (current) | 394 kB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753231-A // Meter for transmission testing // Best Fred H. // American Telephone & Telegraph | ||||
| PDF File 1753230.pdf | 317 kB | Shaun Ewing | Apr 08, 1930 00:00 |
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US-1753230-A // Meter // Best Fred H. // American Telephone & Telegraph | |||
| Version 1 (current) | 317 kB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753230-A // Meter // Best Fred H. // American Telephone & Telegraph | ||||
| PDF File 1752360.pdf | 768 kB | Shaun Ewing | Apr 01, 1930 00:00 |
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US-1752360-A // Reduction of static interference in carrier systems // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 768 kB | Shaun Ewing | Apr 01, 1930 00:00 | US-1752360-A // Reduction of static interference in carrier systems // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1752347.pdf | 462 kB | Shaun Ewing | Apr 01, 1930 00:00 |
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US-1752347-A // Reduction of atmospheric disturbance // Leibe Frank A. // American Telephone & Telegraph | |||
| Version 1 (current) | 462 kB | Shaun Ewing | Apr 01, 1930 00:00 | US-1752347-A // Reduction of atmospheric disturbance // Leibe Frank A. // American Telephone & Telegraph | ||||
| PDF File 1752346.pdf | 516 kB | Shaun Ewing | Apr 01, 1930 00:00 |
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US-1752346-A // Interference neutralizer for alternating-current telegraph systems // Kelley Leo A. ; Monk Newton ; Thorp Vaughn P. // American Telephone & Telegraph | |||
| Version 1 (current) | 516 kB | Shaun Ewing | Apr 01, 1930 00:00 | US-1752346-A // Interference neutralizer for alternating-current telegraph systems // Kelley Leo A. ; Monk Newton ; Thorp Vaughn P. // American Telephone & Telegraph | ||||
| PDF File 1752345.pdf | 529 kB | Shaun Ewing | Apr 01, 1930 00:00 |
|
US-1752345-A // Reduction of atmospheric disturbance // Kelley Leo A. // American Telephone & Telegraph | |||
| Version 1 (current) | 529 kB | Shaun Ewing | Apr 01, 1930 00:00 | US-1752345-A // Reduction of atmospheric disturbance // Kelley Leo A. // American Telephone & Telegraph | ||||
| PDF File 1752344.pdf | 537 kB | Shaun Ewing | Apr 01, 1930 00:00 |
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US-1752344-A // Reduction of atmospheric interference // Kelley Leo A. // American Telephone & Telegraph | |||
| Version 1 (current) | 537 kB | Shaun Ewing | Apr 01, 1930 00:00 | US-1752344-A // Reduction of atmospheric interference // Kelley Leo A. // American Telephone & Telegraph | ||||
| PDF File 1752330.pdf | 481 kB | Shaun Ewing | Apr 01, 1930 00:00 |
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US-1752330-A // Suppression of interference in carrier telegraph systems // Clapp Robert H. // American Telephone & Telegraph | |||
| Version 1 (current) | 481 kB | Shaun Ewing | Apr 01, 1930 00:00 | US-1752330-A // Suppression of interference in carrier telegraph systems // Clapp Robert H. // American Telephone & Telegraph | ||||
| PDF File 1752326.pdf | 486 kB | Shaun Ewing | Apr 01, 1930 00:00 |
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US-1752326-A // Reduction of static interference in carrier systems // Branson David E. // American Telephone & Telegraph | |||
| Version 1 (current) | 486 kB | Shaun Ewing | Apr 01, 1930 00:00 | US-1752326-A // Reduction of static interference in carrier systems // Branson David E. // American Telephone & Telegraph |
