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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2869015.pdf | 394 kB | Shaun Ewing | Jan 13, 1959 00:00 |
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US-2869015-A // Method of fabricating a grid electrode // Bolz Alfred R. // American Telephone & Telegraph | |||
| Version 1 (current) | 394 kB | Shaun Ewing | Jan 13, 1959 00:00 | US-2869015-A // Method of fabricating a grid electrode // Bolz Alfred R. // American Telephone & Telegraph | ||||
| PDF File 3721887.pdf | 393 kB | Shaun Ewing | Mar 20, 1973 00:00 |
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US-3721887-A // Battery protection circuit // Nickerson C,us // American Telephone & Telegraph | |||
| Version 1 (current) | 393 kB | Shaun Ewing | Mar 20, 1973 00:00 | US-3721887-A // Battery protection circuit // Nickerson C,us // American Telephone & Telegraph | ||||
| PDF File 2306220.pdf | 392 kB | Shaun Ewing | Dec 22, 1942 00:00 |
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US-2306220-A // Calling key testing apparatus // Neiswinter James T. // American Telephone & Telegraph | |||
| Version 1 (current) | 392 kB | Shaun Ewing | Dec 22, 1942 00:00 | US-2306220-A // Calling key testing apparatus // Neiswinter James T. // American Telephone & Telegraph | ||||
| PDF File 2377438.pdf | 391 kB | Shaun Ewing | Jun 05, 1945 00:00 |
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US-2377438-A // Testing apparatus // Maxwell John L. // American Telephone & Telegraph | |||
| Version 1 (current) | 391 kB | Shaun Ewing | Jun 05, 1945 00:00 | US-2377438-A // Testing apparatus // Maxwell John L. // American Telephone & Telegraph | ||||
| PDF File 2764753.pdf | 391 kB | Shaun Ewing | Sept 25, 1956 00:00 |
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US-2764753-A // Carrier failure alarm circuit // Martin Wade B. // American Telephone & Telegraph | |||
| Version 1 (current) | 391 kB | Shaun Ewing | Sept 25, 1956 00:00 | US-2764753-A // Carrier failure alarm circuit // Martin Wade B. // American Telephone & Telegraph | ||||
| PDF File 2284296.pdf | 391 kB | Shaun Ewing | May 26, 1942 00:00 |
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US-2284296-A // Telegraph circuit // Muench Eugene Julius ; Greene Monte Lee // American Telephone & Telegraph | |||
| Version 1 (current) | 391 kB | Shaun Ewing | May 26, 1942 00:00 | US-2284296-A // Telegraph circuit // Muench Eugene Julius ; Greene Monte Lee // American Telephone & Telegraph | ||||
| PDF File 2301844.pdf | 384 kB | Shaun Ewing | Nov 10, 1942 00:00 |
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US-2301844-A // Telegraph alarm system // Anderson Clyde Christen // American Telephone & Telegraph | |||
| Version 1 (current) | 384 kB | Shaun Ewing | Nov 10, 1942 00:00 | US-2301844-A // Telegraph alarm system // Anderson Clyde Christen // American Telephone & Telegraph | ||||
| PDF File 2763845.pdf | 379 kB | Shaun Ewing | Sept 18, 1956 00:00 |
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US-2763845-A // Short circuiting plug for coaxial line // Laube Otto Theodore // American Telephone & Telegraph | |||
| Version 1 (current) | 379 kB | Shaun Ewing | Sept 18, 1956 00:00 | US-2763845-A // Short circuiting plug for coaxial line // Laube Otto Theodore // American Telephone & Telegraph | ||||
| PDF File 2278633.pdf | 373 kB | Shaun Ewing | Apr 07, 1942 00:00 |
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US-2278633-A // Temperature control apparatus // Bagnall Vernon Bernard // American Telephone & Telegraph | |||
| Version 1 (current) | 373 kB | Shaun Ewing | Apr 07, 1942 00:00 | US-2278633-A // Temperature control apparatus // Bagnall Vernon Bernard // American Telephone & Telegraph | ||||
| PDF File 2249099.pdf | 371 kB | Shaun Ewing | Jul 15, 1941 00:00 |
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US-2249099-A // Direct current power system // Walton Otto Henry // American Telephone & Telegraph | |||
| Version 1 (current) | 371 kB | Shaun Ewing | Jul 15, 1941 00:00 | US-2249099-A // Direct current power system // Walton Otto Henry // American Telephone & Telegraph | ||||
| PDF File 2301211.pdf | 370 kB | Shaun Ewing | Nov 10, 1942 00:00 |
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US-2301211-A // Teletypewriter system // Hanley Frank Harold // American Telephone & Telegraph | |||
| Version 1 (current) | 370 kB | Shaun Ewing | Nov 10, 1942 00:00 | US-2301211-A // Teletypewriter system // Hanley Frank Harold // American Telephone & Telegraph | ||||
| PDF File 2249103.pdf | 369 kB | Shaun Ewing | Jul 15, 1941 00:00 |
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US-2249103-A // Open telegraph alarm circuit // Anspach Russell Jacob // American Telephone & Telegraph | |||
| Version 1 (current) | 369 kB | Shaun Ewing | Jul 15, 1941 00:00 | US-2249103-A // Open telegraph alarm circuit // Anspach Russell Jacob // American Telephone & Telegraph | ||||
| PDF File 2249153.pdf | 369 kB | Shaun Ewing | Jul 15, 1941 00:00 |
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US-2249153-A // Testing device // Martin Wade B. // American Telephone & Telegraph | |||
| Version 1 (current) | 369 kB | Shaun Ewing | Jul 15, 1941 00:00 | US-2249153-A // Testing device // Martin Wade B. // American Telephone & Telegraph | ||||
| PDF File 2249166.pdf | 363 kB | Shaun Ewing | Jul 15, 1941 00:00 |
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US-2249166-A // Electrical probe // Parker George B. ; Parker Lloyd L. ; Meehan John P. // American Telephone & Telegraph | |||
| Version 1 (current) | 363 kB | Shaun Ewing | Jul 15, 1941 00:00 | US-2249166-A // Electrical probe // Parker George B. ; Parker Lloyd L. ; Meehan John P. // American Telephone & Telegraph | ||||
| PDF File 2473346.pdf | 362 kB | Shaun Ewing | Jun 14, 1949 00:00 |
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US-2473346-A // Teletypewriter exchange system // Richards Kenneth W. // American Telephone & Telegraph | |||
| Version 1 (current) | 362 kB | Shaun Ewing | Jun 14, 1949 00:00 | US-2473346-A // Teletypewriter exchange system // Richards Kenneth W. // American Telephone & Telegraph | ||||
| PDF File 2315419.pdf | 360 kB | Shaun Ewing | Mar 30, 1943 00:00 |
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US-2315419-A // Telegraph breaking system // Hanley Frank Harold // American Telephone & Telegraph | |||
| Version 1 (current) | 360 kB | Shaun Ewing | Mar 30, 1943 00:00 | US-2315419-A // Telegraph breaking system // Hanley Frank Harold // American Telephone & Telegraph | ||||
| PDF File 2321412.pdf | 360 kB | Shaun Ewing | Jun 08, 1943 00:00 |
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US-2321412-A // Dial controlled signaling system // Neiswinter James T. // American Telephone & Telegraph | |||
| Version 1 (current) | 360 kB | Shaun Ewing | Jun 08, 1943 00:00 | US-2321412-A // Dial controlled signaling system // Neiswinter James T. // American Telephone & Telegraph | ||||
| PDF File 2861136.pdf | 360 kB | Shaun Ewing | Nov 18, 1958 00:00 |
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US-2861136-A // Switch mechanism for telephone apparatus // Brison Jordan W. // American Telephone & Telegraph | |||
| Version 1 (current) | 360 kB | Shaun Ewing | Nov 18, 1958 00:00 | US-2861136-A // Switch mechanism for telephone apparatus // Brison Jordan W. // American Telephone & Telegraph | ||||
| PDF File 2777900.pdf | 359 kB | Shaun Ewing | Jan 15, 1957 00:00 |
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US-2777900-A // Reduction of quadrature distortion // Cowan Frank Augustus // American Telephone & Telegraph | |||
| Version 1 (current) | 359 kB | Shaun Ewing | Jan 15, 1957 00:00 | US-2777900-A // Reduction of quadrature distortion // Cowan Frank Augustus // American Telephone & Telegraph | ||||
| PDF File 2755345.pdf | 353 kB | Shaun Ewing | Jul 17, 1956 00:00 |
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US-2755345-A // Line insulation testing circuit // Vaupel Ernest Walter // American Telephone & Telegraph | |||
| Version 1 (current) | 353 kB | Shaun Ewing | Jul 17, 1956 00:00 | US-2755345-A // Line insulation testing circuit // Vaupel Ernest Walter // American Telephone & Telegraph |
