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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2021286.pdf | 3.27 MB | Shaun Ewing | Nov 19, 1935 00:00 |
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US-2021286-A // Telephone system // Butz Edward D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.27 MB | Shaun Ewing | Nov 19, 1935 00:00 | US-2021286-A // Telephone system // Butz Edward D. // Bell Telephone Labor Inc | ||||
| PDF File 2021287.pdf | 2.97 MB | Shaun Ewing | Nov 19, 1935 00:00 |
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US-2021287-A // Telephone system // Butz Edward D. ; Koechling Charles D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.97 MB | Shaun Ewing | Nov 19, 1935 00:00 | US-2021287-A // Telephone system // Butz Edward D. ; Koechling Charles D. // Bell Telephone Labor Inc | ||||
| PDF File 2021291.pdf | 2.35 MB | Shaun Ewing | Nov 19, 1935 00:00 |
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US-2021291-A // Telephone system // Clark Edgar H. ; Scudder Frederick J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.35 MB | Shaun Ewing | Nov 19, 1935 00:00 | US-2021291-A // Telephone system // Clark Edgar H. ; Scudder Frederick J. // Bell Telephone Labor Inc | ||||
| PDF File 2021308.pdf | 1.04 MB | Shaun Ewing | Nov 19, 1935 00:00 |
|
US-2021308-A // Coin detection system // Hovland Henry // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.04 MB | Shaun Ewing | Nov 19, 1935 00:00 | US-2021308-A // Coin detection system // Hovland Henry // Bell Telephone Labor Inc | ||||
| PDF File 2021329.pdf | 970 kB | Shaun Ewing | Nov 19, 1935 00:00 |
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US-2021329-A // Switching mechanism // Reynolds John N. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 970 kB | Shaun Ewing | Nov 19, 1935 00:00 | US-2021329-A // Switching mechanism // Reynolds John N. // Bell Telephone Labor Inc | ||||
| PDF File 2021920.pdf | 872 kB | Shaun Ewing | Nov 26, 1935 00:00 |
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US-2021920-A // Control circuits // Norwine Andrew C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 872 kB | Shaun Ewing | Nov 26, 1935 00:00 | US-2021920-A // Control circuits // Norwine Andrew C. // Bell Telephone Labor Inc | ||||
| PDF File 2022021.pdf | 417 kB | Shaun Ewing | Nov 26, 1935 00:00 |
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US-2022021-A // Cleaning tool // Wheeler Clyde H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 417 kB | Shaun Ewing | Nov 26, 1935 00:00 | US-2022021-A // Cleaning tool // Wheeler Clyde H. // Bell Telephone Labor Inc | ||||
| PDF File 2022030.pdf | 509 kB | Shaun Ewing | Nov 26, 1935 00:00 |
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US-2022030-A // Signaling system // Dimond Thomas L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 509 kB | Shaun Ewing | Nov 26, 1935 00:00 | US-2022030-A // Signaling system // Dimond Thomas L. // Bell Telephone Labor Inc | ||||
| PDF File 2022051.pdf | 664 kB | Shaun Ewing | Nov 26, 1935 00:00 |
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US-2022051-A // Interpolating telegraph receiving system // Locke George A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 664 kB | Shaun Ewing | Nov 26, 1935 00:00 | US-2022051-A // Interpolating telegraph receiving system // Locke George A. // Bell Telephone Labor Inc | ||||
| PDF File 2022052.pdf | 434 kB | Shaun Ewing | Nov 26, 1935 00:00 |
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US-2022052-A // Belt drive // Morton Edmund R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 434 kB | Shaun Ewing | Nov 26, 1935 00:00 | US-2022052-A // Belt drive // Morton Edmund R. // Bell Telephone Labor Inc | ||||
| PDF File 2022053.pdf | 532 kB | Shaun Ewing | Nov 26, 1935 00:00 |
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US-2022053-A // Combined telephone and telegraph system // Pruden Harold M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 532 kB | Shaun Ewing | Nov 26, 1935 00:00 | US-2022053-A // Combined telephone and telegraph system // Pruden Harold M. // Bell Telephone Labor Inc | ||||
| PDF File 2022059.pdf | 183 kB | Shaun Ewing | Nov 26, 1935 00:00 |
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US-2022059-A // Terminal strip device // Stockfleth Sigurd J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 183 kB | Shaun Ewing | Nov 26, 1935 00:00 | US-2022059-A // Terminal strip device // Stockfleth Sigurd J. // Bell Telephone Labor Inc | ||||
| PDF File 2022060.pdf | 456 kB | Shaun Ewing | Nov 26, 1935 00:00 |
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US-2022060-A // Acoustic device // Swickard Andrew E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 456 kB | Shaun Ewing | Nov 26, 1935 00:00 | US-2022060-A // Acoustic device // Swickard Andrew E. // Bell Telephone Labor Inc | ||||
| PDF File 2022964.pdf | 331 kB | Shaun Ewing | Dec 03, 1935 00:00 |
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US-2022964-A // Mounting for electrical devices // Jones Edward H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 331 kB | Shaun Ewing | Dec 03, 1935 00:00 | US-2022964-A // Mounting for electrical devices // Jones Edward H. // Bell Telephone Labor Inc | ||||
| PDF File 2022968.pdf | 505 kB | Shaun Ewing | Dec 03, 1935 00:00 |
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US-2022968-A // Frequency changing system // May David T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 505 kB | Shaun Ewing | Dec 03, 1935 00:00 | US-2022968-A // Frequency changing system // May David T. // Bell Telephone Labor Inc | ||||
| PDF File 2022969.pdf | 861 kB | Shaun Ewing | Dec 03, 1935 00:00 |
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US-2022969-A // Electrical wave production // Meacham Larned A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 861 kB | Shaun Ewing | Dec 03, 1935 00:00 | US-2022969-A // Electrical wave production // Meacham Larned A. // Bell Telephone Labor Inc | ||||
| PDF File 2022971.pdf | 440 kB | Shaun Ewing | Dec 03, 1935 00:00 |
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US-2022971-A // Coin collector apparatus // Mills Percy E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 440 kB | Shaun Ewing | Dec 03, 1935 00:00 | US-2022971-A // Coin collector apparatus // Mills Percy E. // Bell Telephone Labor Inc | ||||
| PDF File 2022972.pdf | 300 kB | Shaun Ewing | Dec 03, 1935 00:00 |
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US-2022972-A // Variable gain amplifier // Nebel Charles N. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 300 kB | Shaun Ewing | Dec 03, 1935 00:00 | US-2022972-A // Variable gain amplifier // Nebel Charles N. // Bell Telephone Labor Inc | ||||
| PDF File 2022977.pdf | 269 kB | Shaun Ewing | Dec 03, 1935 00:00 |
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US-2022977-A // Joint in line wires // Quarles Donald A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 269 kB | Shaun Ewing | Dec 03, 1935 00:00 | US-2022977-A // Joint in line wires // Quarles Donald A. // Bell Telephone Labor Inc | ||||
| PDF File 2022991.pdf | 580 kB | Shaun Ewing | Dec 03, 1935 00:00 |
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US-2022991-A // Alarm transmitting system // Walter Orville L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 580 kB | Shaun Ewing | Dec 03, 1935 00:00 | US-2022991-A // Alarm transmitting system // Walter Orville L. // Bell Telephone Labor Inc |
