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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2093525.pdf | 1.33 MB | Shaun Ewing | Sept 21, 1937 00:00 |
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US-2093525-A // Echo suppressor apparatus // Mitchell Doren // American Telephone & Telegraph | |||
| Version 1 (current) | 1.33 MB | Shaun Ewing | Sept 21, 1937 00:00 | US-2093525-A // Echo suppressor apparatus // Mitchell Doren // American Telephone & Telegraph | ||||
| PDF File 1977256.pdf | 1.33 MB | Shaun Ewing | Oct 16, 1934 00:00 |
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US-1977256-A // Resetting circuits for gas filled tubes // Swart Leland Kasson // American Telephone & Telegraph | |||
| Version 1 (current) | 1.33 MB | Shaun Ewing | Oct 16, 1934 00:00 | US-1977256-A // Resetting circuits for gas filled tubes // Swart Leland Kasson // American Telephone & Telegraph | ||||
| PDF File 1863651.pdf | 1.32 MB | Shaun Ewing | Jun 21, 1932 00:00 |
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US-1863651-A // Apparatus and method for remedying cross talk // Chapman Arthur G. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.32 MB | Shaun Ewing | Jun 21, 1932 00:00 | US-1863651-A // Apparatus and method for remedying cross talk // Chapman Arthur G. // American Telephone & Telegraph | ||||
| PDF File 1922115.pdf | 1.32 MB | Shaun Ewing | Aug 15, 1933 00:00 |
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US-1922115-A // Antenna array // Stone John Stone // American Telephone & Telegraph | |||
| Version 1 (current) | 1.32 MB | Shaun Ewing | Aug 15, 1933 00:00 | US-1922115-A // Antenna array // Stone John Stone // American Telephone & Telegraph | ||||
| PDF File 2064961.pdf | 1.30 MB | Shaun Ewing | Dec 22, 1936 00:00 |
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US-2064961-A // Common medium multichannel exchange system // Tidd Warren Hitchcock // American Telephone & Telegraph | |||
| Version 1 (current) | 1.30 MB | Shaun Ewing | Dec 22, 1936 00:00 | US-2064961-A // Common medium multichannel exchange system // Tidd Warren Hitchcock // American Telephone & Telegraph | ||||
| PDF File 1894322.pdf | 1.29 MB | Shaun Ewing | Jan 17, 1933 00:00 |
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US-1894322-A // Means for eliminating distortion in repeaters // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 1.29 MB | Shaun Ewing | Jan 17, 1933 00:00 | US-1894322-A // Means for eliminating distortion in repeaters // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 2027465.pdf | 1.29 MB | Shaun Ewing | Jan 14, 1936 00:00 |
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US-2027465-A // Telephone system // Brazelton Roy M. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.29 MB | Shaun Ewing | Jan 14, 1936 00:00 | US-2027465-A // Telephone system // Brazelton Roy M. // American Telephone & Telegraph | ||||
| PDF File 2132678.pdf | 1.28 MB | Shaun Ewing | Oct 11, 1938 00:00 |
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US-2132678-A // Signal distortion measuring device // Cowan Frank A. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.28 MB | Shaun Ewing | Oct 11, 1938 00:00 | US-2132678-A // Signal distortion measuring device // Cowan Frank A. // American Telephone & Telegraph | ||||
| PDF File 1795397.pdf | 1.27 MB | Shaun Ewing | Mar 10, 1931 00:00 |
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US-1795397-A // Directionally-selective radio receiving system // Hoyt Ray S. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.27 MB | Shaun Ewing | Mar 10, 1931 00:00 | US-1795397-A // Directionally-selective radio receiving system // Hoyt Ray S. // American Telephone & Telegraph | ||||
| PDF File 2034033.pdf | 1.26 MB | Shaun Ewing | Mar 17, 1936 00:00 |
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US-2034033-A // Shielded stranded pair // Green Estill I. ; Curtis Harold E. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.26 MB | Shaun Ewing | Mar 17, 1936 00:00 | US-2034033-A // Shielded stranded pair // Green Estill I. ; Curtis Harold E. // American Telephone & Telegraph | ||||
| PDF File 2206453.pdf | 1.25 MB | Shaun Ewing | Jul 02, 1940 00:00 |
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US-2206453-A // Telegraph testing apparatus // Weaver Allan // American Telephone & Telegraph | |||
| Version 1 (current) | 1.25 MB | Shaun Ewing | Jul 02, 1940 00:00 | US-2206453-A // Telegraph testing apparatus // Weaver Allan // American Telephone & Telegraph | ||||
| PDF File 2023556.pdf | 1.24 MB | Shaun Ewing | Dec 10, 1935 00:00 |
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US-2023556-A // Frequency selective communication system // Stone John Stone // American Telephone & Telegraph | |||
| Version 1 (current) | 1.24 MB | Shaun Ewing | Dec 10, 1935 00:00 | US-2023556-A // Frequency selective communication system // Stone John Stone // American Telephone & Telegraph | ||||
| PDF File 1840360.pdf | 1.23 MB | Shaun Ewing | Jan 12, 1932 00:00 |
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US-1840360-A // Selective circuit arrangement // Herman Joseph // American Telephone & Telegraph | |||
| Version 1 (current) | 1.23 MB | Shaun Ewing | Jan 12, 1932 00:00 | US-1840360-A // Selective circuit arrangement // Herman Joseph // American Telephone & Telegraph | ||||
| PDF File 1924628.pdf | 1.22 MB | Shaun Ewing | Aug 29, 1933 00:00 |
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US-1924628-A // Method of and apparatus for receiving high frequency oscillations // Smythe Edwin H. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.22 MB | Shaun Ewing | Aug 29, 1933 00:00 | US-1924628-A // Method of and apparatus for receiving high frequency oscillations // Smythe Edwin H. // American Telephone & Telegraph | ||||
| PDF File 2154592.pdf | 1.21 MB | Shaun Ewing | Apr 18, 1939 00:00 |
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US-2154592-A // Teletypewriter automatic switching system // Watson Edward Fisk // American Telephone & Telegraph | |||
| Version 1 (current) | 1.21 MB | Shaun Ewing | Apr 18, 1939 00:00 | US-2154592-A // Teletypewriter automatic switching system // Watson Edward Fisk // American Telephone & Telegraph | ||||
| PDF File 1802420.pdf | 1.21 MB | Shaun Ewing | Apr 28, 1931 00:00 |
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US-1802420-A // Method of utilizing a wide frequency range for signaling channels // Green Estill I. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.21 MB | Shaun Ewing | Apr 28, 1931 00:00 | US-1802420-A // Method of utilizing a wide frequency range for signaling channels // Green Estill I. // American Telephone & Telegraph | ||||
| PDF File 1808868.pdf | 1.21 MB | Shaun Ewing | Jun 09, 1931 00:00 |
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US-1808868-A // Directional antenna array // Stone John Stone // American Telephone & Telegraph | |||
| Version 1 (current) | 1.21 MB | Shaun Ewing | Jun 09, 1931 00:00 | US-1808868-A // Directional antenna array // Stone John Stone // American Telephone & Telegraph | ||||
| PDF File 1808867.pdf | 1.20 MB | Shaun Ewing | Jun 09, 1931 00:00 |
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US-1808867-A // Directional antenna array // Stone John Stone // American Telephone & Telegraph | |||
| Version 1 (current) | 1.20 MB | Shaun Ewing | Jun 09, 1931 00:00 | US-1808867-A // Directional antenna array // Stone John Stone // American Telephone & Telegraph | ||||
| PDF File 2025880.pdf | 1.20 MB | Shaun Ewing | Dec 31, 1935 00:00 |
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US-2025880-A // Telephone system // Mcdavitt Marcellus Balli // American Telephone & Telegraph | |||
| Version 1 (current) | 1.20 MB | Shaun Ewing | Dec 31, 1935 00:00 | US-2025880-A // Telephone system // Mcdavitt Marcellus Balli // American Telephone & Telegraph | ||||
| PDF File 1860446.pdf | 1.20 MB | Shaun Ewing | May 31, 1932 00:00 |
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US-1860446-A // Signaling system // Bailey Rand S. ; Newby Neal D. ; Moody Dwight L. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.20 MB | Shaun Ewing | May 31, 1932 00:00 | US-1860446-A // Signaling system // Bailey Rand S. ; Newby Neal D. ; Moody Dwight L. // American Telephone & Telegraph |
