Unable to load page tree. It seems that you do not have permission to view the root page.
Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2654807.pdf | 15.93 MB | Shaun Ewing | Oct 06, 1953 00:00 |
|
US-2654807-A // Marker for allotting a link and a sender // Shepherd Judson O'D. // American Telephone & Telegraph | |||
| Version 1 (current) | 15.93 MB | Shaun Ewing | Oct 06, 1953 00:00 | US-2654807-A // Marker for allotting a link and a sender // Shepherd Judson O'D. // American Telephone & Telegraph | ||||
| PDF File 2522000.pdf | 14.04 MB | Shaun Ewing | Sept 12, 1950 00:00 |
|
US-2522000-A // Recording telephone system // Shepherd Judson O'D // American Telephone & Telegraph | |||
| Version 1 (current) | 14.04 MB | Shaun Ewing | Sept 12, 1950 00:00 | US-2522000-A // Recording telephone system // Shepherd Judson O'D // American Telephone & Telegraph | ||||
| PDF File 2635148.pdf | 13.49 MB | Shaun Ewing | Apr 14, 1953 00:00 |
|
US-2635148-A // Crossbar telephone system with marker release and lockout of defective line // Shepherd Judson O'D. // American Telephone And Telepho | |||
| Version 1 (current) | 13.49 MB | Shaun Ewing | Apr 14, 1953 00:00 | US-2635148-A // Crossbar telephone system with marker release and lockout of defective line // Shepherd Judson O'D. // American Telephone And Telepho | ||||
| PDF File 2588052.pdf | 12.82 MB | Shaun Ewing | Mar 04, 1952 00:00 |
|
US-2588052-A // Control circuit for telephone systems // Shepherd Judson O'D. // American Telephone & Telegraph | |||
| Version 1 (current) | 12.82 MB | Shaun Ewing | Mar 04, 1952 00:00 | US-2588052-A // Control circuit for telephone systems // Shepherd Judson O'D. // American Telephone & Telegraph | ||||
| PDF File 2698880.pdf | 12.53 MB | Shaun Ewing | Jan 04, 1955 00:00 |
|
US-2698880-A // Calling line identifier // Shepherd Judson O'D. // American Telephone & Telegraph | |||
| Version 1 (current) | 12.53 MB | Shaun Ewing | Jan 04, 1955 00:00 | US-2698880-A // Calling line identifier // Shepherd Judson O'D. // American Telephone & Telegraph | ||||
| PDF File 2698879.pdf | 12.37 MB | Shaun Ewing | Jan 04, 1955 00:00 |
|
US-2698879-A // Class of service determining circuit // Shepherd Judson O'D. // American Telephone & Telegraph | |||
| Version 1 (current) | 12.37 MB | Shaun Ewing | Jan 04, 1955 00:00 | US-2698879-A // Class of service determining circuit // Shepherd Judson O'D. // American Telephone & Telegraph | ||||
| PDF File 3250859.pdf | 11.90 MB | Shaun Ewing | May 10, 1966 00:00 |
|
US-3250859-A // Universal line concentrator // Fisher Richard G. // American Telephone & Telegraph | |||
| Version 1 (current) | 11.90 MB | Shaun Ewing | May 10, 1966 00:00 | US-3250859-A // Universal line concentrator // Fisher Richard G. // American Telephone & Telegraph | ||||
| PDF File 4464650.pdf | 5.99 MB | Shaun Ewing | Aug 07, 1984 00:00 |
|
US-4464650-A // Apparatus and method for compressing data signals and restoring the compressed data signals // Eastman; Willard L. ; Lempel; Abraham ; Ziv; Jacob ; Cohn; Martin // Sperry Corporation | |||
| Version 1 (current) | 5.99 MB | Shaun Ewing | Aug 07, 1984 00:00 | US-4464650-A // Apparatus and method for compressing data signals and restoring the compressed data signals // Eastman; Willard L. ; Lempel; Abraham ; Ziv; Jacob ; Cohn; Martin // Sperry Corporation | ||||
| PDF File 2979556.pdf | 5.38 MB | Shaun Ewing | Apr 11, 1961 00:00 |
|
US-2979556-A // Semiautomatic teletypewriter tape relay system // Anspach Russell J. ; Clark Robert C. ; Neiswinter James T. ; Tamasi Prospero A. // American Telephone & Telegraph | |||
| Version 1 (current) | 5.38 MB | Shaun Ewing | Apr 11, 1961 00:00 | US-2979556-A // Semiautomatic teletypewriter tape relay system // Anspach Russell J. ; Clark Robert C. ; Neiswinter James T. ; Tamasi Prospero A. // American Telephone & Telegraph | ||||
| PDF File 2863950.pdf | 5.14 MB | Shaun Ewing | Dec 09, 1958 00:00 |
|
US-2863950-A // Telephone service concentrator // Dunning Sanford F. ; Macpherson Donald H. // American Telephone & Telegraph ; Bell Telephone Labor Inc | |||
| Version 1 (current) | 5.14 MB | Shaun Ewing | Dec 09, 1958 00:00 | US-2863950-A // Telephone service concentrator // Dunning Sanford F. ; Macpherson Donald H. // American Telephone & Telegraph ; Bell Telephone Labor Inc | ||||
| PDF File 2366733.pdf | 3.96 MB | Shaun Ewing | Jan 09, 1945 00:00 |
|
US-2366733-A // Communication system // Krecek Joseph A. ; Walker Charles R. // Bell Telephone Labor Inc ; American Telephone & Telegraph | |||
| Version 1 (current) | 3.96 MB | Shaun Ewing | Jan 09, 1945 00:00 | US-2366733-A // Communication system // Krecek Joseph A. ; Walker Charles R. // Bell Telephone Labor Inc ; American Telephone & Telegraph | ||||
| PDF File 3185773.pdf | 3.95 MB | Shaun Ewing | May 25, 1965 00:00 |
|
US-3185773-A // Switching system channel selection // Engeman John C. ; Jr. Leo Fring, ; Hartmann George J. // American Telephone & Telegraph | |||
| Version 1 (current) | 3.95 MB | Shaun Ewing | May 25, 1965 00:00 | US-3185773-A // Switching system channel selection // Engeman John C. ; Jr. Leo Fring, ; Hartmann George J. // American Telephone & Telegraph | ||||
| PDF File 3099718.pdf | 3.83 MB | Shaun Ewing | Jul 30, 1963 00:00 |
|
US-3099718-A // Universal line concentrator // Fisher Richard G. // American Telephone & Telegraph | |||
| Version 1 (current) | 3.83 MB | Shaun Ewing | Jul 30, 1963 00:00 | US-3099718-A // Universal line concentrator // Fisher Richard G. // American Telephone & Telegraph | ||||
| PDF File 3355556.pdf | 3.52 MB | Shaun Ewing | Nov 28, 1967 00:00 |
|
US-3355556-A // Automatic mobile radio telephone switching system // Chaney Ralph A. // American Telephone & Telegraph | |||
| Version 1 (current) | 3.52 MB | Shaun Ewing | Nov 28, 1967 00:00 | US-3355556-A // Automatic mobile radio telephone switching system // Chaney Ralph A. // American Telephone & Telegraph | ||||
| PDF File 2776333.pdf | 3.43 MB | Shaun Ewing | Jan 01, 1957 00:00 |
|
US-2776333-A // Teletypewriter code controlled selective device // Neiswinter James T. // American Telephone & Telegraph | |||
| Version 1 (current) | 3.43 MB | Shaun Ewing | Jan 01, 1957 00:00 | US-2776333-A // Teletypewriter code controlled selective device // Neiswinter James T. // American Telephone & Telegraph | ||||
| PDF File 3398234.pdf | 3.22 MB | Shaun Ewing | Aug 20, 1968 00:00 |
|
US-3398234-A // Multiple address circuit // Thomas Robert L. // American Telephone & Telegraph | |||
| Version 1 (current) | 3.22 MB | Shaun Ewing | Aug 20, 1968 00:00 | US-3398234-A // Multiple address circuit // Thomas Robert L. // American Telephone & Telegraph | ||||
| PDF File 2373675.pdf | 3.15 MB | Shaun Ewing | Apr 17, 1945 00:00 |
|
US-2373675-A // Party line printing telegraph system // Gardner Leland A. ; Richards Kenneth W. // Bell Telephone Labor Inc ; American Telephone & Telegraph | |||
| Version 1 (current) | 3.15 MB | Shaun Ewing | Apr 17, 1945 00:00 | US-2373675-A // Party line printing telegraph system // Gardner Leland A. ; Richards Kenneth W. // Bell Telephone Labor Inc ; American Telephone & Telegraph | ||||
| PDF File 2269379.pdf | 2.73 MB | Shaun Ewing | Jan 06, 1942 00:00 |
|
US-2269379-A // Teletypewriter switching system // Patton Oscar Mcdonald // American Telephone & Telegraph | |||
| Version 1 (current) | 2.73 MB | Shaun Ewing | Jan 06, 1942 00:00 | US-2269379-A // Teletypewriter switching system // Patton Oscar Mcdonald // American Telephone & Telegraph | ||||
| PDF File 2617888.pdf | 2.69 MB | Shaun Ewing | Nov 11, 1952 00:00 |
|
US-2617888-A // Line lockout arrangement // Shepherd Judson O'D. // American Telephone & Telegraph | |||
| Version 1 (current) | 2.69 MB | Shaun Ewing | Nov 11, 1952 00:00 | US-2617888-A // Line lockout arrangement // Shepherd Judson O'D. // American Telephone & Telegraph | ||||
| PDF File 3456240.pdf | 2.55 MB | Shaun Ewing | Jul 15, 1969 00:00 |
|
US-3456240-A // Method and arrangement for signaling in a remote control system // Bruce C. Hays // American Telephone & Telegraph | |||
| Version 1 (current) | 2.55 MB | Shaun Ewing | Jul 15, 1969 00:00 | US-3456240-A // Method and arrangement for signaling in a remote control system // Bruce C. Hays // American Telephone & Telegraph |
