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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2993958.pdf | 485 kB | Shaun Ewing | Jul 25, 1961 00:00 |
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US-2993958-A // Radiant energy receiving system // Barnes Richard R. // American Telephone & Telegraph | |||
| Version 1 (current) | 485 kB | Shaun Ewing | Jul 25, 1961 00:00 | US-2993958-A // Radiant energy receiving system // Barnes Richard R. // American Telephone & Telegraph | ||||
| PDF File 2438891.pdf | 484 kB | Shaun Ewing | Apr 06, 1948 00:00 |
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US-2438891-A // Telephone booth // Beardsley Harry I. ; Meehan Howard W. // Bell Telephone Labor Inc ; American Telephone & Telegraph | |||
| Version 1 (current) | 484 kB | Shaun Ewing | Apr 06, 1948 00:00 | US-2438891-A // Telephone booth // Beardsley Harry I. ; Meehan Howard W. // Bell Telephone Labor Inc ; American Telephone & Telegraph | ||||
| PDF File 2375064.pdf | 481 kB | Shaun Ewing | May 01, 1945 00:00 |
|
US-2375064-A // Teletypewriter control system // Anspach Russell Jacob ; Walker Charles Robert // American Telephone & Telegraph | |||
| Version 1 (current) | 481 kB | Shaun Ewing | May 01, 1945 00:00 | US-2375064-A // Teletypewriter control system // Anspach Russell Jacob ; Walker Charles Robert // American Telephone & Telegraph | ||||
| PDF File 2509477.pdf | 481 kB | Shaun Ewing | May 30, 1950 00:00 |
|
US-2509477-A // Coin control device for telephone coin collectors // Carson Arthur ; Gassman Kenneth Mackinzie // American Telephone & Telegraph | |||
| Version 1 (current) | 481 kB | Shaun Ewing | May 30, 1950 00:00 | US-2509477-A // Coin control device for telephone coin collectors // Carson Arthur ; Gassman Kenneth Mackinzie // American Telephone & Telegraph | ||||
| PDF File 2471712.pdf | 481 kB | Shaun Ewing | May 31, 1949 00:00 |
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US-2471712-A // Intercommunication teletypewriter system // Bacon Walter M. ; Walker Charles R. // Bell Telephone Labor Inc ; American Telephone & Telegraph | |||
| Version 1 (current) | 481 kB | Shaun Ewing | May 31, 1949 00:00 | US-2471712-A // Intercommunication teletypewriter system // Bacon Walter M. ; Walker Charles R. // Bell Telephone Labor Inc ; American Telephone & Telegraph | ||||
| PDF File 2547575.pdf | 479 kB | Shaun Ewing | Apr 03, 1951 00:00 |
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US-2547575-A // Telegraph repeater // Gilbo De Motte Whitcomb // American Telephone & Telegraph | |||
| Version 1 (current) | 479 kB | Shaun Ewing | Apr 03, 1951 00:00 | US-2547575-A // Telegraph repeater // Gilbo De Motte Whitcomb // American Telephone & Telegraph | ||||
| PDF File 2265145.pdf | 476 kB | Shaun Ewing | Dec 09, 1941 00:00 |
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US-2265145-A // Frequency modulator // Clarke John Leonard // American Telephone & Telegraph | |||
| Version 1 (current) | 476 kB | Shaun Ewing | Dec 09, 1941 00:00 | US-2265145-A // Frequency modulator // Clarke John Leonard // American Telephone & Telegraph | ||||
| PDF File 2375066.pdf | 475 kB | Shaun Ewing | May 01, 1945 00:00 |
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US-2375066-A // Automatic coin return system // Avery Robert C. // American Telephone & Telegraph | |||
| Version 1 (current) | 475 kB | Shaun Ewing | May 01, 1945 00:00 | US-2375066-A // Automatic coin return system // Avery Robert C. // American Telephone & Telegraph | ||||
| PDF File 2231906.pdf | 474 kB | Shaun Ewing | Feb 18, 1941 00:00 |
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US-2231906-A // Calculating span clearance rule // Hansen Carl Harold // American Telephone & Telegraph | |||
| Version 1 (current) | 474 kB | Shaun Ewing | Feb 18, 1941 00:00 | US-2231906-A // Calculating span clearance rule // Hansen Carl Harold // American Telephone & Telegraph | ||||
| PDF File 2337929.pdf | 471 kB | Shaun Ewing | Dec 28, 1943 00:00 |
|
US-2337929-A // Apparatus for reducing bias in telegraph signals // Richards Kenneth Watson // American Telephone & Telegraph | |||
| Version 1 (current) | 471 kB | Shaun Ewing | Dec 28, 1943 00:00 | US-2337929-A // Apparatus for reducing bias in telegraph signals // Richards Kenneth Watson // American Telephone & Telegraph | ||||
| PDF File 2991353.pdf | 470 kB | Shaun Ewing | Jul 04, 1961 00:00 |
|
US-2991353-A // Automatic frequency control for multitransmitter radio system // Barnes Richard R. // American Telephone & Telegraph | |||
| Version 1 (current) | 470 kB | Shaun Ewing | Jul 04, 1961 00:00 | US-2991353-A // Automatic frequency control for multitransmitter radio system // Barnes Richard R. // American Telephone & Telegraph | ||||
| PDF File 2389082.pdf | 469 kB | Shaun Ewing | Nov 13, 1945 00:00 |
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US-2389082-A // Code calling signal // Rhoads Charles Stanley // American Telephone & Telegraph | |||
| Version 1 (current) | 469 kB | Shaun Ewing | Nov 13, 1945 00:00 | US-2389082-A // Code calling signal // Rhoads Charles Stanley // American Telephone & Telegraph | ||||
| PDF File 2383826.pdf | 463 kB | Shaun Ewing | Aug 28, 1945 00:00 |
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US-2383826-A // Line usage recorder circuit // Spencer Fred Bernard // American Telephone & Telegraph | |||
| Version 1 (current) | 463 kB | Shaun Ewing | Aug 28, 1945 00:00 | US-2383826-A // Line usage recorder circuit // Spencer Fred Bernard // American Telephone & Telegraph | ||||
| PDF File 2721894.pdf | 463 kB | Shaun Ewing | Oct 25, 1955 00:00 |
|
US-2721894-A // Telegraph loop loading // Hanley Frank Harold // American Telephone & Telegraph | |||
| Version 1 (current) | 463 kB | Shaun Ewing | Oct 25, 1955 00:00 | US-2721894-A // Telegraph loop loading // Hanley Frank Harold // American Telephone & Telegraph | ||||
| PDF File 2383788.pdf | 462 kB | Shaun Ewing | Aug 28, 1945 00:00 |
|
US-2383788-A // Telegraph system // Hanley Frank Harold // American Telephone & Telegraph | |||
| Version 1 (current) | 462 kB | Shaun Ewing | Aug 28, 1945 00:00 | US-2383788-A // Telegraph system // Hanley Frank Harold // American Telephone & Telegraph | ||||
| PDF File 2307842.pdf | 456 kB | Shaun Ewing | Jan 12, 1943 00:00 |
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US-2307842-A // Teletypewriter system // Martin Wade B. // American Telephone & Telegraph | |||
| Version 1 (current) | 456 kB | Shaun Ewing | Jan 12, 1943 00:00 | US-2307842-A // Teletypewriter system // Martin Wade B. // American Telephone & Telegraph | ||||
| PDF File 3041410.pdf | 455 kB | Shaun Ewing | Jun 26, 1962 00:00 |
|
US-3041410-A // Delay busy circuit // Stenger William J. // American Telephone & Telegraph | |||
| Version 1 (current) | 455 kB | Shaun Ewing | Jun 26, 1962 00:00 | US-3041410-A // Delay busy circuit // Stenger William J. // American Telephone & Telegraph | ||||
| PDF File 2454536.pdf | 455 kB | Shaun Ewing | Nov 23, 1948 00:00 |
|
US-2454536-A // Control apparatus for forced drainage // Werner Daniel Ralph // American Telephone & Telegraph | |||
| Version 1 (current) | 455 kB | Shaun Ewing | Nov 23, 1948 00:00 | US-2454536-A // Control apparatus for forced drainage // Werner Daniel Ralph // American Telephone & Telegraph | ||||
| PDF File 2831106.pdf | 451 kB | Shaun Ewing | Apr 15, 1958 00:00 |
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US-2831106-A // Stabilized automatic frequency control circuit with noise operated squelch // Clark Jean H. // American Telephone & Telegraph | |||
| Version 1 (current) | 451 kB | Shaun Ewing | Apr 15, 1958 00:00 | US-2831106-A // Stabilized automatic frequency control circuit with noise operated squelch // Clark Jean H. // American Telephone & Telegraph | ||||
| PDF File 2367013.pdf | 450 kB | Shaun Ewing | Jan 09, 1945 00:00 |
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US-2367013-A // Insulation test set // Edmonds Robert Mason // American Telephone & Telegraph | |||
| Version 1 (current) | 450 kB | Shaun Ewing | Jan 09, 1945 00:00 | US-2367013-A // Insulation test set // Edmonds Robert Mason // American Telephone & Telegraph |
