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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2803706.pdf | 558 kB | Shaun Ewing | Aug 20, 1957 00:00 |
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US-2803706-A // Trunk circuit // Althouse Homer C. // American Telephone & Telegraph | |||
| Version 1 (current) | 558 kB | Shaun Ewing | Aug 20, 1957 00:00 | US-2803706-A // Trunk circuit // Althouse Homer C. // American Telephone & Telegraph | ||||
| PDF File 2346114.pdf | 557 kB | Shaun Ewing | Apr 04, 1944 00:00 |
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US-2346114-A // Right-of-way telephone system // Rhoads Charles Stanley // American Telephone & Telegraph | |||
| Version 1 (current) | 557 kB | Shaun Ewing | Apr 04, 1944 00:00 | US-2346114-A // Right-of-way telephone system // Rhoads Charles Stanley // American Telephone & Telegraph | ||||
| PDF File 2713087.pdf | 556 kB | Shaun Ewing | Jul 12, 1955 00:00 |
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US-2713087-A // Full duplex telegraph repeater circuit // Neiswinter James T. // American Telephone & Telegraph | |||
| Version 1 (current) | 556 kB | Shaun Ewing | Jul 12, 1955 00:00 | US-2713087-A // Full duplex telegraph repeater circuit // Neiswinter James T. // American Telephone & Telegraph | ||||
| PDF File 2265120.pdf | 556 kB | Shaun Ewing | Dec 02, 1941 00:00 |
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US-2265120-A // Secret signaling system // Perry Donald Burke // American Telephone & Telegraph | |||
| Version 1 (current) | 556 kB | Shaun Ewing | Dec 02, 1941 00:00 | US-2265120-A // Secret signaling system // Perry Donald Burke // American Telephone & Telegraph | ||||
| PDF File 3478174.pdf | 554 kB | Shaun Ewing | Nov 11, 1969 00:00 |
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US-3478174-A // Call distributing circuit utilizing sequential activation of station ringers // Donald A. Macleod ; George P. Maddock // American Telephone & Telegraph | |||
| Version 1 (current) | 554 kB | Shaun Ewing | Nov 11, 1969 00:00 | US-3478174-A // Call distributing circuit utilizing sequential activation of station ringers // Donald A. Macleod ; George P. Maddock // American Telephone & Telegraph | ||||
| PDF File 2353673.pdf | 552 kB | Shaun Ewing | Jul 18, 1944 00:00 |
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US-2353673-A // Code signaling system // Kennedy William Joseph // American Telephone & Telegraph | |||
| Version 1 (current) | 552 kB | Shaun Ewing | Jul 18, 1944 00:00 | US-2353673-A // Code signaling system // Kennedy William Joseph // American Telephone & Telegraph | ||||
| PDF File 2418424.pdf | 551 kB | Shaun Ewing | Apr 01, 1947 00:00 |
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US-2418424-A // Electrical measuring device // Plym Lester Marshall // American Telephone & Telegraph | |||
| Version 1 (current) | 551 kB | Shaun Ewing | Apr 01, 1947 00:00 | US-2418424-A // Electrical measuring device // Plym Lester Marshall // American Telephone & Telegraph | ||||
| PDF File 2375073.pdf | 547 kB | Shaun Ewing | May 01, 1945 00:00 |
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US-2375073-A // Plow point // Brown Howard D. ; Freeman Albert Edward // American Telephone & Telegraph | |||
| Version 1 (current) | 547 kB | Shaun Ewing | May 01, 1945 00:00 | US-2375073-A // Plow point // Brown Howard D. ; Freeman Albert Edward // American Telephone & Telegraph | ||||
| PDF File 2460767.pdf | 547 kB | Shaun Ewing | Feb 01, 1949 00:00 |
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US-2460767-A // Control circuit for switching telegraph facilities // Pigman George Ruemont // American Telephone & Telegraph | |||
| Version 1 (current) | 547 kB | Shaun Ewing | Feb 01, 1949 00:00 | US-2460767-A // Control circuit for switching telegraph facilities // Pigman George Ruemont // American Telephone & Telegraph | ||||
| PDF File 2560709.pdf | 546 kB | Shaun Ewing | Jul 17, 1951 00:00 |
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US-2560709-A // Clipping amplifier // Woodward William Redin // American Telephone & Telegraph | |||
| Version 1 (current) | 546 kB | Shaun Ewing | Jul 17, 1951 00:00 | US-2560709-A // Clipping amplifier // Woodward William Redin // American Telephone & Telegraph | ||||
| PDF File 2713122.pdf | 544 kB | Shaun Ewing | Jul 12, 1955 00:00 |
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US-2713122-A // Automatic frequency control // Henley Edward Joseph // American Telephone & Telegraph | |||
| Version 1 (current) | 544 kB | Shaun Ewing | Jul 12, 1955 00:00 | US-2713122-A // Automatic frequency control // Henley Edward Joseph // American Telephone & Telegraph | ||||
| PDF File 2360643.pdf | 544 kB | Shaun Ewing | Oct 17, 1944 00:00 |
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US-2360643-A // Tow hook mounting for vehicles // Bixel Edward Carl // American Telephone & Telegraph | |||
| Version 1 (current) | 544 kB | Shaun Ewing | Oct 17, 1944 00:00 | US-2360643-A // Tow hook mounting for vehicles // Bixel Edward Carl // American Telephone & Telegraph | ||||
| PDF File 3142728.pdf | 536 kB | Shaun Ewing | Jul 28, 1964 00:00 |
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US-3142728-A // Call distributing circuit // Macleod Donald A. // American Telephone & Telegraph | |||
| Version 1 (current) | 536 kB | Shaun Ewing | Jul 28, 1964 00:00 | US-3142728-A // Call distributing circuit // Macleod Donald A. // American Telephone & Telegraph | ||||
| PDF File 2886396.pdf | 533 kB | Shaun Ewing | May 12, 1959 00:00 |
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US-2886396-A // Drawer for storage of keys // Anthony Harry E. ; Burnham Charles S. ; Ment Jack R. De ; Hahn George W. ; Jr. John M. Hepler, // American Telephone & Telegraph | |||
| Version 1 (current) | 533 kB | Shaun Ewing | May 12, 1959 00:00 | US-2886396-A // Drawer for storage of keys // Anthony Harry E. ; Burnham Charles S. ; Ment Jack R. De ; Hahn George W. ; Jr. John M. Hepler, // American Telephone & Telegraph | ||||
| PDF File 3226088.pdf | 528 kB | Shaun Ewing | Dec 28, 1965 00:00 |
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US-3226088-A // Apparatus for pulling cable through underground conduit // Habighorst Henry J. // American Telephone & Telegraph | |||
| Version 1 (current) | 528 kB | Shaun Ewing | Dec 28, 1965 00:00 | US-3226088-A // Apparatus for pulling cable through underground conduit // Habighorst Henry J. // American Telephone & Telegraph | ||||
| PDF File 2376275.pdf | 527 kB | Shaun Ewing | May 15, 1945 00:00 |
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US-2376275-A // Signaling system // Rhoads Charles Stanley // American Telephone & Telegraph | |||
| Version 1 (current) | 527 kB | Shaun Ewing | May 15, 1945 00:00 | US-2376275-A // Signaling system // Rhoads Charles Stanley // 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 2466484.pdf | 526 kB | Shaun Ewing | Apr 05, 1949 00:00 |
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US-2466484-A // Subscriber ringing circuit // Schroeppel Harold H. // American Telephone & Telegraph | |||
| Version 1 (current) | 526 kB | Shaun Ewing | Apr 05, 1949 00:00 | US-2466484-A // Subscriber ringing circuit // Schroeppel Harold H. // American Telephone & Telegraph | ||||
| PDF File 3287509.pdf | 523 kB | Shaun Ewing | Nov 22, 1966 00:00 |
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US-3287509-A // Apparatus to visually identify cable pairs in a multipair cable by cable pair encoding means // Bohnenblust Clarence E. // American Telephone & Telegraph | |||
| Version 1 (current) | 523 kB | Shaun Ewing | Nov 22, 1966 00:00 | US-3287509-A // Apparatus to visually identify cable pairs in a multipair cable by cable pair encoding means // Bohnenblust Clarence E. // American Telephone & Telegraph | ||||
| PDF File 2321418.pdf | 523 kB | Shaun Ewing | Jun 08, 1943 00:00 |
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US-2321418-A // Teletypewriter numbering system // Perry Donald Burke // American Telephone & Telegraph | |||
| Version 1 (current) | 523 kB | Shaun Ewing | Jun 08, 1943 00:00 | US-2321418-A // Teletypewriter numbering system // Perry Donald Burke // American Telephone & Telegraph |
