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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2036381.pdf | 994 kB | Shaun Ewing | Apr 07, 1936 00:00 |
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US-2036381-A // Impedance equalizing system // Zinn Manvel Keeport // American Telephone & Telegraph | |||
| Version 1 (current) | 994 kB | Shaun Ewing | Apr 07, 1936 00:00 | US-2036381-A // Impedance equalizing system // Zinn Manvel Keeport // American Telephone & Telegraph | ||||
| PDF File 2107387.pdf | 993 kB | Shaun Ewing | Feb 08, 1938 00:00 |
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US-2107387-A // Vacuum tube with tank circuits // Potter Ralph Kimball // American Telephone & Telegraph | |||
| Version 1 (current) | 993 kB | Shaun Ewing | Feb 08, 1938 00:00 | US-2107387-A // Vacuum tube with tank circuits // Potter Ralph Kimball // American Telephone & Telegraph | ||||
| PDF File 1921071.pdf | 992 kB | Shaun Ewing | Aug 08, 1933 00:00 |
|
US-1921071-A // Telephone pay station apparatus // Edwards William Hopple // American Telephone & Telegraph | |||
| Version 1 (current) | 992 kB | Shaun Ewing | Aug 08, 1933 00:00 | US-1921071-A // Telephone pay station apparatus // Edwards William Hopple // American Telephone & Telegraph | ||||
| PDF File 1791579.pdf | 992 kB | Shaun Ewing | Feb 10, 1931 00:00 |
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US-1791579-A // Telegraph signaling system // Singer Fred J. // American Telephone & Telegraph | |||
| Version 1 (current) | 992 kB | Shaun Ewing | Feb 10, 1931 00:00 | US-1791579-A // Telegraph signaling system // Singer Fred J. // American Telephone & Telegraph | ||||
| PDF File 2064906.pdf | 992 kB | Shaun Ewing | Dec 22, 1936 00:00 |
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US-2064906-A // Common medium multichannel exchange system // Green Estill I. ; Tidd Warren H. // American Telephone & Telegraph | |||
| Version 1 (current) | 992 kB | Shaun Ewing | Dec 22, 1936 00:00 | US-2064906-A // Common medium multichannel exchange system // Green Estill I. ; Tidd Warren H. // American Telephone & Telegraph | ||||
| PDF File 2107373.pdf | 989 kB | Shaun Ewing | Feb 08, 1938 00:00 |
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US-2107373-A // Apparatus for converting continuous motion into interrupted motion // Edwards Paul Griffith // American Telephone & Telegraph | |||
| Version 1 (current) | 989 kB | Shaun Ewing | Feb 08, 1938 00:00 | US-2107373-A // Apparatus for converting continuous motion into interrupted motion // Edwards Paul Griffith // American Telephone & Telegraph | ||||
| PDF File 1790076.pdf | 985 kB | Shaun Ewing | Jan 27, 1931 00:00 |
|
US-1790076-A // Automatic voltage-regulating circuit // Schramm Fred W. // American Telephone & Telegraph | |||
| Version 1 (current) | 985 kB | Shaun Ewing | Jan 27, 1931 00:00 | US-1790076-A // Automatic voltage-regulating circuit // Schramm Fred W. // American Telephone & Telegraph | ||||
| PDF File 1921063.pdf | 983 kB | Shaun Ewing | Aug 08, 1933 00:00 |
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US-1921063-A // Treatment of echoes in transmission systems // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 983 kB | Shaun Ewing | Aug 08, 1933 00:00 | US-1921063-A // Treatment of echoes in transmission systems // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1800305.pdf | 981 kB | Shaun Ewing | Apr 14, 1931 00:00 |
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US-1800305-A // Relay-regulating circuits // Lindsay Russell H. // American Telephone & Telegraph | |||
| Version 1 (current) | 981 kB | Shaun Ewing | Apr 14, 1931 00:00 | US-1800305-A // Relay-regulating circuits // Lindsay Russell 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 1834002.pdf | 975 kB | Shaun Ewing | Dec 01, 1931 00:00 |
|
US-1834002-A // Distortion neutralizing repeater // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 975 kB | Shaun Ewing | Dec 01, 1931 00:00 | US-1834002-A // Distortion neutralizing repeater // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 2008061.pdf | 975 kB | Shaun Ewing | Jul 16, 1935 00:00 |
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US-2008061-A // Apparatus and method for remedying crosstalk // Coolidge Oliver H. ; Weaver Myron Alexander // American Telephone & Telegraph | |||
| Version 1 (current) | 975 kB | Shaun Ewing | Jul 16, 1935 00:00 | US-2008061-A // Apparatus and method for remedying crosstalk // Coolidge Oliver H. ; Weaver Myron Alexander // American Telephone & Telegraph | ||||
| PDF File 2065765.pdf | 973 kB | Shaun Ewing | Dec 29, 1936 00:00 |
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US-2065765-A // Electrical protective system // Swart Leland Kasson // American Telephone & Telegraph | |||
| Version 1 (current) | 973 kB | Shaun Ewing | Dec 29, 1936 00:00 | US-2065765-A // Electrical protective system // Swart Leland Kasson // American Telephone & Telegraph | ||||
| PDF File 1833958.pdf | 972 kB | Shaun Ewing | Dec 01, 1931 00:00 |
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US-1833958-A // Telegraph signal recording system // Watson Edward F. ; Mccann Thomas A. // American Telephone & Telegraph | |||
| Version 1 (current) | 972 kB | Shaun Ewing | Dec 01, 1931 00:00 | US-1833958-A // Telegraph signal recording system // Watson Edward F. ; Mccann Thomas A. // American Telephone & Telegraph | ||||
| PDF File 1915442.pdf | 970 kB | Shaun Ewing | Jun 27, 1933 00:00 |
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US-1915442-A // Cable conductor system // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 970 kB | Shaun Ewing | Jun 27, 1933 00:00 | US-1915442-A // Cable conductor system // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1856202.pdf | 967 kB | Shaun Ewing | May 03, 1932 00:00 |
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US-1856202-A // Testing apparatus // Wilson Leon T. // American Telephone & Telegraph | |||
| Version 1 (current) | 967 kB | Shaun Ewing | May 03, 1932 00:00 | US-1856202-A // Testing apparatus // Wilson Leon T. // American Telephone & Telegraph | ||||
| PDF File 1934685.pdf | 966 kB | Shaun Ewing | Nov 14, 1933 00:00 |
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US-1934685-A // Multiplex signaling system // Demarest Charles S. // American Telephone & Telegraph | |||
| Version 1 (current) | 966 kB | Shaun Ewing | Nov 14, 1933 00:00 | US-1934685-A // Multiplex signaling system // Demarest Charles S. // American Telephone & Telegraph | ||||
| PDF File 1835099.pdf | 963 kB | Shaun Ewing | Dec 08, 1931 00:00 |
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US-1835099-A // Valve commutator and its use in multiplex signaling // Stone John Stone // American Telephone & Telegraph | |||
| Version 1 (current) | 963 kB | Shaun Ewing | Dec 08, 1931 00:00 | US-1835099-A // Valve commutator and its use in multiplex signaling // Stone John Stone // American Telephone & Telegraph | ||||
| PDF File 1836106.pdf | 959 kB | Shaun Ewing | Dec 15, 1931 00:00 |
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US-1836106-A // Overflow jack circuit // Broe Edgar P. // American Telephone & Telegraph | |||
| Version 1 (current) | 959 kB | Shaun Ewing | Dec 15, 1931 00:00 | US-1836106-A // Overflow jack circuit // Broe Edgar P. // American Telephone & Telegraph | ||||
| PDF File 2224250.pdf | 959 kB | Shaun Ewing | Dec 10, 1940 00:00 |
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US-2224250-A // Communication system // Borgeson Carl Anders ; Carter Frank J. ; Drake George Robert ; Groome Preston Edmund ; Hanley Frank Harold // American Telephone & Telegraph | |||
| Version 1 (current) | 959 kB | Shaun Ewing | Dec 10, 1940 00:00 | US-2224250-A // Communication system // Borgeson Carl Anders ; Carter Frank J. ; Drake George Robert ; Groome Preston Edmund ; Hanley Frank Harold // American Telephone & Telegraph |
