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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2707778.pdf | 567 kB | Shaun Ewing | May 03, 1955 00:00 |
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US-2707778-A // Control circuit with answer back and supervisory signals // Neiswinter James T. // American Telephone & Telegraph | |||
| Version 1 (current) | 567 kB | Shaun Ewing | May 03, 1955 00:00 | US-2707778-A // Control circuit with answer back and supervisory signals // Neiswinter James T. // American Telephone & Telegraph | ||||
| PDF File 2698880.pdf | 12.53 MB | Shaun Ewing | Jan 04, 1955 00:00 |
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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 2691064.pdf | 968 kB | Shaun Ewing | Oct 05, 1954 00:00 |
|
US-2691064-A // Measuring circuits // Shepherd Judson O'D. // American Telephone & Telegraph | |||
| Version 1 (current) | 968 kB | Shaun Ewing | Oct 05, 1954 00:00 | US-2691064-A // Measuring circuits // Shepherd Judson O'D. // American Telephone & Telegraph | ||||
| PDF File 2684997.pdf | 974 kB | Shaun Ewing | Jul 27, 1954 00:00 |
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US-2684997-A // Telephone line finder circuit // Thompson Bert H. // American Telephone & Telegraph | |||
| Version 1 (current) | 974 kB | Shaun Ewing | Jul 27, 1954 00:00 | US-2684997-A // Telephone line finder circuit // Thompson Bert H. // American Telephone & Telegraph | ||||
| PDF File 2677011.pdf | 432 kB | Shaun Ewing | Apr 27, 1954 00:00 |
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US-2677011-A // Teletypewriter message identification system // Burwell Gordon E. // American Telephone & Telegraph | |||
| Version 1 (current) | 432 kB | Shaun Ewing | Apr 27, 1954 00:00 | US-2677011-A // Teletypewriter message identification system // Burwell Gordon E. // American Telephone & Telegraph | ||||
| PDF File 2672522.pdf | 315 kB | Shaun Ewing | Mar 16, 1954 00:00 |
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US-2672522-A // Delayed switchboard lamp system // Yeomans Lucien Osborn // American Telephone & Telegraph | |||
| Version 1 (current) | 315 kB | Shaun Ewing | Mar 16, 1954 00:00 | US-2672522-A // Delayed switchboard lamp system // Yeomans Lucien Osborn // American Telephone & Telegraph | ||||
| PDF File 2664466.pdf | 1.40 MB | Shaun Ewing | Dec 29, 1953 00:00 |
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US-2664466-A // Multiway telegraph repeater system // Hanley Frank Harold // American Telephone & Telegraph | |||
| Version 1 (current) | 1.40 MB | Shaun Ewing | Dec 29, 1953 00:00 | US-2664466-A // Multiway telegraph repeater system // Hanley Frank Harold // American Telephone & Telegraph | ||||
| PDF File 2654807.pdf | 15.93 MB | Shaun Ewing | Oct 06, 1953 00:00 |
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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 2641644.pdf | 939 kB | Shaun Ewing | Jun 09, 1953 00:00 |
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US-2641644-A // Printing suppression mechanism for teletypewriters // Beyland Sidney Warren // American Telephone & Telegraph | |||
| Version 1 (current) | 939 kB | Shaun Ewing | Jun 09, 1953 00:00 | US-2641644-A // Printing suppression mechanism for teletypewriters // Beyland Sidney Warren // American Telephone & Telegraph | ||||
| PDF File 2640193.pdf | 760 kB | Shaun Ewing | May 26, 1953 00:00 |
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US-2640193-A // Radiant energy signaling system // Carter Robert William ; Currier Milton Griffith ; Emig William George ; Glentzer Kenneth Verley // American Telephone & Telegraph | |||
| Version 1 (current) | 760 kB | Shaun Ewing | May 26, 1953 00:00 | US-2640193-A // Radiant energy signaling system // Carter Robert William ; Currier Milton Griffith ; Emig William George ; Glentzer Kenneth Verley // American Telephone & Telegraph | ||||
| PDF File 2638497.pdf | 1.27 MB | Shaun Ewing | May 12, 1953 00:00 |
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US-2638497-A // Telegraph call transferring system // Martin Wade B. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.27 MB | Shaun Ewing | May 12, 1953 00:00 | US-2638497-A // Telegraph call transferring system // Martin Wade B. // American Telephone & Telegraph | ||||
| PDF File 2635148.pdf | 13.49 MB | Shaun Ewing | Apr 14, 1953 00:00 |
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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 2632054.pdf | 352 kB | Shaun Ewing | Mar 17, 1953 00:00 |
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US-2632054-A // Hub telegraph repeater // Hanley Frank Harold // American Telephone & Telegraph | |||
| Version 1 (current) | 352 kB | Shaun Ewing | Mar 17, 1953 00:00 | US-2632054-A // Hub telegraph repeater // Hanley Frank Harold // American Telephone & Telegraph | ||||
| PDF File 2630496.pdf | 683 kB | Shaun Ewing | Mar 03, 1953 00:00 |
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US-2630496-A // Two-way polar telegraph repeater // Harford George Philip // American Telephone & Telegraph | |||
| Version 1 (current) | 683 kB | Shaun Ewing | Mar 03, 1953 00:00 | US-2630496-A // Two-way polar telegraph repeater // Harford George Philip // American Telephone & Telegraph | ||||
| PDF File 2630493.pdf | 527 kB | Shaun Ewing | Mar 03, 1953 00:00 |
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US-2630493-A // Carrier telegraph system // Neiswinter James T. // American Telephone & Telegraph | |||
| Version 1 (current) | 527 kB | Shaun Ewing | Mar 03, 1953 00:00 | US-2630493-A // Carrier telegraph system // Neiswinter James T. // American Telephone & Telegraph | ||||
| PDF File 2625609.pdf | 347 kB | Shaun Ewing | Jan 13, 1953 00:00 |
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US-2625609-A // Telegraph repeater // Hanley Frank H. // American Telephone & Telegraph | |||
| Version 1 (current) | 347 kB | Shaun Ewing | Jan 13, 1953 00:00 | US-2625609-A // Telegraph repeater // Hanley Frank H. // American Telephone & Telegraph | ||||
| PDF File 2625608.pdf | 604 kB | Shaun Ewing | Jan 13, 1953 00:00 |
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US-2625608-A // Open telegraph line indicator // Hanley Frank Harold // American Telephone & Telegraph | |||
| Version 1 (current) | 604 kB | Shaun Ewing | Jan 13, 1953 00:00 | US-2625608-A // Open telegraph line indicator // Hanley Frank Harold // American Telephone & Telegraph | ||||
| PDF File 2617888.pdf | 2.69 MB | Shaun Ewing | Nov 11, 1952 00:00 |
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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 2614632.pdf | 864 kB | Shaun Ewing | Oct 21, 1952 00:00 |
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US-2614632-A // Apparatus for recording numerals in code // Clos Charles // American Telephone & Telegraph | |||
| Version 1 (current) | 864 kB | Shaun Ewing | Oct 21, 1952 00:00 | US-2614632-A // Apparatus for recording numerals in code // Clos Charles // American Telephone & Telegraph |
