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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2039405.pdf | 959 kB | Shaun Ewing | May 05, 1936 00:00 |
|
US-2039405-A // Remote metering system // Green Estill I. ; Tidd Warren H. // American Telephone & Telegraph | |||
| Version 1 (current) | 959 kB | Shaun Ewing | May 05, 1936 00:00 | US-2039405-A // Remote metering system // Green Estill I. ; Tidd Warren H. // American Telephone & Telegraph | ||||
| PDF File 2099771.pdf | 959 kB | Shaun Ewing | Nov 23, 1937 00:00 |
|
US-2099771-A // Printing telegraph system // Rea Wilton Treat // American Telephone & Telegraph | |||
| Version 1 (current) | 959 kB | Shaun Ewing | Nov 23, 1937 00:00 | US-2099771-A // Printing telegraph system // Rea Wilton Treat // American Telephone & Telegraph | ||||
| PDF File 1815254.pdf | 954 kB | Shaun Ewing | Jul 21, 1931 00:00 |
|
US-1815254-A // Shunt type impedance equalizer for any smooth line // Hoyt Ray S. // American Telephone & Telegraph | |||
| Version 1 (current) | 954 kB | Shaun Ewing | Jul 21, 1931 00:00 | US-1815254-A // Shunt type impedance equalizer for any smooth line // Hoyt Ray S. // American Telephone & Telegraph | ||||
| PDF File 1794393.pdf | 954 kB | Shaun Ewing | Mar 03, 1931 00:00 |
|
US-1794393-A // Transmission-measuring apparatus // Bown Ralph ; Potter Ralph K. // American Telephone & Telegraph | |||
| Version 1 (current) | 954 kB | Shaun Ewing | Mar 03, 1931 00:00 | US-1794393-A // Transmission-measuring apparatus // Bown Ralph ; Potter Ralph K. // American Telephone & Telegraph | ||||
| PDF File 2018851.pdf | 952 kB | Shaun Ewing | Oct 29, 1935 00:00 |
|
US-2018851-A // Unattended repeater system // Green Estill Ibbotson ; Leibe Frank Augustus // American Telephone & Telegraph | |||
| Version 1 (current) | 952 kB | Shaun Ewing | Oct 29, 1935 00:00 | US-2018851-A // Unattended repeater system // Green Estill Ibbotson ; Leibe Frank Augustus // American Telephone & Telegraph | ||||
| PDF File 1815256.pdf | 950 kB | Shaun Ewing | Jul 21, 1931 00:00 |
|
US-1815256-A // Series type impedance equalizer for any smooth line // Hoyt Ray S. // American Telephone & Telegraph | |||
| Version 1 (current) | 950 kB | Shaun Ewing | Jul 21, 1931 00:00 | US-1815256-A // Series type impedance equalizer for any smooth line // Hoyt Ray S. // American Telephone & Telegraph | ||||
| PDF File 1891297.pdf | 947 kB | Shaun Ewing | Dec 20, 1932 00:00 |
|
US-1891297-A // Variable gain circuit device // Wintringham William T. // American Telephone & Telegraph | |||
| Version 1 (current) | 947 kB | Shaun Ewing | Dec 20, 1932 00:00 | US-1891297-A // Variable gain circuit device // Wintringham William T. // American Telephone & Telegraph | ||||
| PDF File 2061027.pdf | 943 kB | Shaun Ewing | Nov 17, 1936 00:00 |
|
US-2061027-A // Communication with moving trains // Espenschied Lloyd ; Monk Newton // American Telephone & Telegraph | |||
| Version 1 (current) | 943 kB | Shaun Ewing | Nov 17, 1936 00:00 | US-2061027-A // Communication with moving trains // Espenschied Lloyd ; Monk Newton // American Telephone & Telegraph | ||||
| PDF File 2133380.pdf | 941 kB | Shaun Ewing | Oct 18, 1938 00:00 |
|
US-2133380-A // Communication system // Deardorff Ralph Warner // American Telephone & Telegraph | |||
| Version 1 (current) | 941 kB | Shaun Ewing | Oct 18, 1938 00:00 | US-2133380-A // Communication system // Deardorff Ralph Warner // American Telephone & Telegraph | ||||
| PDF File 1908326.pdf | 939 kB | Shaun Ewing | May 09, 1933 00:00 |
|
US-1908326-A // Selective signaling system // Demarest Charles S. // American Telephone & Telegraph | |||
| Version 1 (current) | 939 kB | Shaun Ewing | May 09, 1933 00:00 | US-1908326-A // Selective signaling system // Demarest Charles S. // American Telephone & Telegraph | ||||
| PDF File 2088722.pdf | 937 kB | Shaun Ewing | Aug 03, 1937 00:00 |
|
US-2088722-A // Vacuum tube with tank circuits // Potter Ralph Kimball // American Telephone & Telegraph | |||
| Version 1 (current) | 937 kB | Shaun Ewing | Aug 03, 1937 00:00 | US-2088722-A // Vacuum tube with tank circuits // Potter Ralph Kimball // American Telephone & Telegraph | ||||
| PDF File 2086679.pdf | 934 kB | Shaun Ewing | Jul 13, 1937 00:00 |
|
US-2086679-A // Telegraph system // Rea Wilton Treat // American Telephone & Telegraph | |||
| Version 1 (current) | 934 kB | Shaun Ewing | Jul 13, 1937 00:00 | US-2086679-A // Telegraph system // Rea Wilton Treat // American Telephone & Telegraph | ||||
| PDF File 1973595.pdf | 931 kB | Shaun Ewing | Sept 11, 1934 00:00 |
|
US-1973595-A // Two-way telephone system // Wright Sumner B. ; Taylor Edmund R. // American Telephone & Telegraph | |||
| Version 1 (current) | 931 kB | Shaun Ewing | Sept 11, 1934 00:00 | US-1973595-A // Two-way telephone system // Wright Sumner B. ; Taylor Edmund R. // American Telephone & Telegraph | ||||
| PDF File 1871904.pdf | 930 kB | Shaun Ewing | Aug 16, 1932 00:00 |
|
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 2051529.pdf | 930 kB | Shaun Ewing | Aug 18, 1936 00:00 |
|
US-2051529-A // High frequency signaling system // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 930 kB | Shaun Ewing | Aug 18, 1936 00:00 | US-2051529-A // High frequency signaling system // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 2015155.pdf | 923 kB | Shaun Ewing | Sept 24, 1935 00:00 |
|
US-2015155-A // Telegraph system // Rea Wilton T. // American Telephone & Telegraph | |||
| Version 1 (current) | 923 kB | Shaun Ewing | Sept 24, 1935 00:00 | US-2015155-A // Telegraph system // Rea Wilton T. // American Telephone & Telegraph | ||||
| PDF File 2154547.pdf | 918 kB | Shaun Ewing | Apr 18, 1939 00:00 |
|
US-2154547-A // Teletypewriter system // Walker Charles R. // American Telephone & Telegraph | |||
| Version 1 (current) | 918 kB | Shaun Ewing | Apr 18, 1939 00:00 | US-2154547-A // Teletypewriter system // Walker Charles R. // American Telephone & Telegraph | ||||
| PDF File 1866631.pdf | 913 kB | Shaun Ewing | Jul 12, 1932 00:00 |
|
US-1866631-A // Magneto-optical device // Dorff Louis A. ; Jr. George Sandalls, // American Telephone & Telegraph | |||
| Version 1 (current) | 913 kB | Shaun Ewing | Jul 12, 1932 00:00 | US-1866631-A // Magneto-optical device // Dorff Louis A. ; Jr. George Sandalls, // American Telephone & Telegraph | ||||
| PDF File 2120235.pdf | 913 kB | Shaun Ewing | Jun 14, 1938 00:00 |
|
US-2120235-A // Teletypewriter system // Beattie James Francis ; Cunningham Harold Jerome ; Roycroft Walter Richard // Western Electric Co ; American Telephone & Telegraph | |||
| Version 1 (current) | 913 kB | Shaun Ewing | Jun 14, 1938 00:00 | US-2120235-A // Teletypewriter system // Beattie James Francis ; Cunningham Harold Jerome ; Roycroft Walter Richard // Western Electric Co ; American Telephone & Telegraph | ||||
| PDF File 1902893.pdf | 911 kB | Shaun Ewing | Mar 28, 1933 00:00 |
|
US-1902893-A // Signaling system // Potter Ralph K. // American Telephone & Telegraph | |||
| Version 1 (current) | 911 kB | Shaun Ewing | Mar 28, 1933 00:00 | US-1902893-A // Signaling system // Potter Ralph K. // American Telephone & Telegraph |
