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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1930612.pdf | 1.18 MB | Shaun Ewing | Oct 17, 1933 00:00 |
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US-1930612-A // Telephone system // Getz Emil L. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.18 MB | Shaun Ewing | Oct 17, 1933 00:00 | US-1930612-A // Telephone system // Getz Emil L. // American Telephone & Telegraph | ||||
| PDF File 1808869.pdf | 1.18 MB | Shaun Ewing | Jun 09, 1931 00:00 |
|
US-1808869-A // Directional antenna array // Stone John Stone // American Telephone & Telegraph | |||
| Version 1 (current) | 1.18 MB | Shaun Ewing | Jun 09, 1931 00:00 | US-1808869-A // Directional antenna array // Stone John Stone // 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 2083666.pdf | 1.18 MB | Shaun Ewing | Jun 15, 1937 00:00 |
|
US-2083666-A // High frequency signaling system // Potter Ralph Kimball // American Telephone & Telegraph | |||
| Version 1 (current) | 1.18 MB | Shaun Ewing | Jun 15, 1937 00:00 | US-2083666-A // High frequency signaling system // Potter Ralph Kimball // American Telephone & Telegraph | ||||
| PDF File 1800304.pdf | 1.17 MB | Shaun Ewing | Apr 14, 1931 00:00 |
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US-1800304-A // Relay-regulating circuits // Lindsay Russell H. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.17 MB | Shaun Ewing | Apr 14, 1931 00:00 | US-1800304-A // Relay-regulating circuits // Lindsay Russell H. // American Telephone & Telegraph | ||||
| PDF File 1829838.pdf | 1.17 MB | Shaun Ewing | Nov 03, 1931 00:00 |
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US-1829838-A // Transmission delay measuring system // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 1.17 MB | Shaun Ewing | Nov 03, 1931 00:00 | US-1829838-A // Transmission delay measuring system // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 2064958.pdf | 1.17 MB | Shaun Ewing | Dec 22, 1936 00:00 |
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US-2064958-A // Signaling system for radiotelephones // Taylor Edmund R. ; Taylor Charles C. ; Wadsworth Paul W. // Bell Telephone Labor Inc ; Edmund R Taylor ; Charles C Taylor ; American Telephone & Telegraph | |||
| Version 1 (current) | 1.17 MB | Shaun Ewing | Dec 22, 1936 00:00 | US-2064958-A // Signaling system for radiotelephones // Taylor Edmund R. ; Taylor Charles C. ; Wadsworth Paul W. // Bell Telephone Labor Inc ; Edmund R Taylor ; Charles C Taylor ; American Telephone & Telegraph | ||||
| PDF File 1915382.pdf | 1.17 MB | Shaun Ewing | Jun 27, 1933 00:00 |
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US-1915382-A // Radio telephone system // Pruden Harold M. ; Taylor Charles C. // Bell Telephone Labor Inc ; American Telephone & Telegraph | |||
| Version 1 (current) | 1.17 MB | Shaun Ewing | Jun 27, 1933 00:00 | US-1915382-A // Radio telephone system // Pruden Harold M. ; Taylor Charles C. // Bell Telephone Labor Inc ; American Telephone & Telegraph | ||||
| PDF File 2170038.pdf | 1.17 MB | Shaun Ewing | Aug 22, 1939 00:00 |
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US-2170038-A // Telephone and telegraph exchange system // Singer Fred John // American Telephone & Telegraph | |||
| Version 1 (current) | 1.17 MB | Shaun Ewing | Aug 22, 1939 00:00 | US-2170038-A // Telephone and telegraph exchange system // Singer Fred John // American Telephone & Telegraph | ||||
| PDF File 2064895.pdf | 1.17 MB | Shaun Ewing | Dec 22, 1936 00:00 |
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US-2064895-A // Common medium multichannel exchange system // Espenschied Lloyd ; Monk Newton // American Telephone & Telegraph | |||
| Version 1 (current) | 1.17 MB | Shaun Ewing | Dec 22, 1936 00:00 | US-2064895-A // Common medium multichannel exchange system // Espenschied Lloyd ; Monk Newton // American Telephone & Telegraph | ||||
| PDF File 2142339.pdf | 1.16 MB | Shaun Ewing | Jan 03, 1939 00:00 |
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US-2142339-A // Picture broadcasting system // Weaver Allan // American Telephone & Telegraph | |||
| Version 1 (current) | 1.16 MB | Shaun Ewing | Jan 03, 1939 00:00 | US-2142339-A // Picture broadcasting system // Weaver Allan // American Telephone & Telegraph | ||||
| PDF File 2084121.pdf | 1.16 MB | Shaun Ewing | Jun 15, 1937 00:00 |
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US-2084121-A // Prepayment telephone system // Anderson Emil N. ; Bascom Henry M. ; Getz Emil L. ; Jr. George Sandalls, // American Telephone & Telegraph ; Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.16 MB | Shaun Ewing | Jun 15, 1937 00:00 | US-2084121-A // Prepayment telephone system // Anderson Emil N. ; Bascom Henry M. ; Getz Emil L. ; Jr. George Sandalls, // American Telephone & Telegraph ; Bell Telephone Labor Inc | ||||
| PDF File 1831931.pdf | 1.14 MB | Shaun Ewing | Nov 17, 1931 00:00 |
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US-1831931-A // Telephone system // Stern Arthur B. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.14 MB | Shaun Ewing | Nov 17, 1931 00:00 | US-1831931-A // Telephone system // Stern Arthur B. // American Telephone & Telegraph | ||||
| PDF File 2028835.pdf | 1.14 MB | Shaun Ewing | Jan 28, 1936 00:00 |
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US-2028835-A // Start-stop telegraph repeater // Herman Joseph // American Telephone & Telegraph | |||
| Version 1 (current) | 1.14 MB | Shaun Ewing | Jan 28, 1936 00:00 | US-2028835-A // Start-stop telegraph repeater // Herman Joseph // American Telephone & Telegraph | ||||
| PDF File 1881607.pdf | 1.14 MB | Shaun Ewing | Oct 11, 1932 00:00 |
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US-1881607-A // Printing telegraph system // Hunt Arthur E. ; Lang Wilmarth Y. // American Telephone & Telegraph ; Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.14 MB | Shaun Ewing | Oct 11, 1932 00:00 | US-1881607-A // Printing telegraph system // Hunt Arthur E. ; Lang Wilmarth Y. // American Telephone & Telegraph ; Bell Telephone Labor Inc | ||||
| PDF File 2108974.pdf | 1.14 MB | Shaun Ewing | Feb 22, 1938 00:00 |
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US-2108974-A // Two-way signaling system // Schott Lionel // American Telephone & Telegraph | |||
| Version 1 (current) | 1.14 MB | Shaun Ewing | Feb 22, 1938 00:00 | US-2108974-A // Two-way signaling system // Schott Lionel // American Telephone & Telegraph | ||||
| PDF File 2026696.pdf | 1.14 MB | Shaun Ewing | Jan 07, 1936 00:00 |
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US-2026696-A // Signaling system // Mitchell Doren // American Telephone & Telegraph | |||
| Version 1 (current) | 1.14 MB | Shaun Ewing | Jan 07, 1936 00:00 | US-2026696-A // Signaling system // Mitchell Doren // American Telephone & Telegraph | ||||
| PDF File 1857259.pdf | 1.12 MB | Shaun Ewing | May 10, 1932 00:00 |
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US-1857259-A // Transmission system // Rea Wilton T. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.12 MB | Shaun Ewing | May 10, 1932 00:00 | US-1857259-A // Transmission system // Rea Wilton T. // American Telephone & Telegraph | ||||
| PDF File 2020409.pdf | 1.12 MB | Shaun Ewing | Nov 12, 1935 00:00 |
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US-2020409-A // Band separation system // Green Estill I. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.12 MB | Shaun Ewing | Nov 12, 1935 00:00 | US-2020409-A // Band separation system // Green Estill I. // American Telephone & Telegraph | ||||
| PDF File 1927128.pdf | 1.12 MB | Shaun Ewing | Sept 19, 1933 00:00 |
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US-1927128-A // Gain control apparatus // Lindsay Russell H. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.12 MB | Shaun Ewing | Sept 19, 1933 00:00 | US-1927128-A // Gain control apparatus // Lindsay Russell H. // American Telephone & Telegraph |
