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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2120408.pdf | 727 kB | Shaun Ewing | Jun 14, 1938 00:00 |
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US-2120408-A // Selective switch // Hickman Clarence N. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 727 kB | Shaun Ewing | Jun 14, 1938 00:00 | US-2120408-A // Selective switch // Hickman Clarence N. // Bell Telephone Labor Inc | ||||
| PDF File 2120413.pdf | 666 kB | Shaun Ewing | Jun 14, 1938 00:00 |
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US-2120413-A // Selective switch // Matthies William H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 666 kB | Shaun Ewing | Jun 14, 1938 00:00 | US-2120413-A // Selective switch // Matthies William H. // Bell Telephone Labor Inc | ||||
| PDF File 2120419.pdf | 1.78 MB | Shaun Ewing | Jun 14, 1938 00:00 |
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US-2120419-A // Telephone system // Stokely Grace Macdonald // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.78 MB | Shaun Ewing | Jun 14, 1938 00:00 | US-2120419-A // Telephone system // Stokely Grace Macdonald // Bell Telephone Labor Inc | ||||
| PDF File 2120421.pdf | 312 kB | Shaun Ewing | Jun 14, 1938 00:00 |
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US-2120421-A // Relay // Wagar Harold N. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 312 kB | Shaun Ewing | Jun 14, 1938 00:00 | US-2120421-A // Relay // Wagar Harold N. // Bell Telephone Labor Inc | ||||
| PDF File 2120971.pdf | 1.59 MB | Shaun Ewing | Jun 21, 1938 00:00 |
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US-2120971-A // System and method of determining distance // Bailey Arnold B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.59 MB | Shaun Ewing | Jun 21, 1938 00:00 | US-2120971-A // System and method of determining distance // Bailey Arnold B. // Bell Telephone Labor Inc | ||||
| PDF File 2120972.pdf | 847 kB | Shaun Ewing | Jun 21, 1938 00:00 |
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US-2120972-A // Converting system // Blount Frank E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 847 kB | Shaun Ewing | Jun 21, 1938 00:00 | US-2120972-A // Converting system // Blount Frank E. // Bell Telephone Labor Inc | ||||
| PDF File 2120973.pdf | 260 kB | Shaun Ewing | Jun 21, 1938 00:00 |
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US-2120973-A // Electrical coil // Dietze Eginhard ; Foley John W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 260 kB | Shaun Ewing | Jun 21, 1938 00:00 | US-2120973-A // Electrical coil // Dietze Eginhard ; Foley John W. // Bell Telephone Labor Inc | ||||
| PDF File 2120979.pdf | 299 kB | Shaun Ewing | Jun 21, 1938 00:00 |
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US-2120979-A // Acoustic element for sound studios // Hunt Franklin L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 299 kB | Shaun Ewing | Jun 21, 1938 00:00 | US-2120979-A // Acoustic element for sound studios // Hunt Franklin L. // Bell Telephone Labor Inc | ||||
| PDF File 2120985.pdf | 344 kB | Shaun Ewing | Jun 21, 1938 00:00 |
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US-2120985-A // Electromagnetic device // Melhose Alfred E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 344 kB | Shaun Ewing | Jun 21, 1938 00:00 | US-2120985-A // Electromagnetic device // Melhose Alfred E. // Bell Telephone Labor Inc | ||||
| PDF File 2120989.pdf | 619 kB | Shaun Ewing | Jun 21, 1938 00:00 |
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US-2120989-A // Mechanical drive // Pfannenstiehl Harry // Bell Telephone Labor Inc | |||
| Version 1 (current) | 619 kB | Shaun Ewing | Jun 21, 1938 00:00 | US-2120989-A // Mechanical drive // Pfannenstiehl Harry // Bell Telephone Labor Inc | ||||
| PDF File 2120994.pdf | 719 kB | Shaun Ewing | Jun 21, 1938 00:00 |
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US-2120994-A // Carrier communication system // Tidd Warren H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 719 kB | Shaun Ewing | Jun 21, 1938 00:00 | US-2120994-A // Carrier communication system // Tidd Warren H. // Bell Telephone Labor Inc | ||||
| PDF File 2121141.pdf | 393 kB | Shaun Ewing | Jun 21, 1938 00:00 |
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US-2121141-A // Electrical power indicating apparatus // Lange Owen E. De // Bell Telephone Labor Inc | |||
| Version 1 (current) | 393 kB | Shaun Ewing | Jun 21, 1938 00:00 | US-2121141-A // Electrical power indicating apparatus // Lange Owen E. De // Bell Telephone Labor Inc | ||||
| PDF File 2121142.pdf | 2.34 MB | Shaun Ewing | Jun 21, 1938 00:00 |
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US-2121142-A // System for the artificial production of vocal or other sounds // Dudley Homer W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.34 MB | Shaun Ewing | Jun 21, 1938 00:00 | US-2121142-A // System for the artificial production of vocal or other sounds // Dudley Homer W. // Bell Telephone Labor Inc | ||||
| PDF File 2121419.pdf | 3.19 MB | Shaun Ewing | Jun 21, 1938 00:00 |
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US-2121419-A // Call distributing telephone system // Blake Foster B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.19 MB | Shaun Ewing | Jun 21, 1938 00:00 | US-2121419-A // Call distributing telephone system // Blake Foster B. // Bell Telephone Labor Inc | ||||
| PDF File 2122458.pdf | 858 kB | Shaun Ewing | Jul 05, 1938 00:00 |
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US-2122458-A // Film sprocket // Elmer Lloyd A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 858 kB | Shaun Ewing | Jul 05, 1938 00:00 | US-2122458-A // Film sprocket // Elmer Lloyd A. // Bell Telephone Labor Inc | ||||
| PDF File 2122463.pdf | 303 kB | Shaun Ewing | Jul 05, 1938 00:00 |
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US-2122463-A // Method of enameling wire // Fuller Calvin S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 303 kB | Shaun Ewing | Jul 05, 1938 00:00 | US-2122463-A // Method of enameling wire // Fuller Calvin S. // Bell Telephone Labor Inc | ||||
| PDF File 2122495.pdf | 1.40 MB | Shaun Ewing | Jul 05, 1938 00:00 |
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US-2122495-A // Magnetron oscillator // Scott Herbert J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.40 MB | Shaun Ewing | Jul 05, 1938 00:00 | US-2122495-A // Magnetron oscillator // Scott Herbert J. // Bell Telephone Labor Inc | ||||
| PDF File 2123177.pdf | 362 kB | Shaun Ewing | Jul 12, 1938 00:00 |
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US-2123177-A // Acoustic device // Blount Nelson // Bell Telephone Labor Inc | |||
| Version 1 (current) | 362 kB | Shaun Ewing | Jul 12, 1938 00:00 | US-2123177-A // Acoustic device // Blount Nelson // Bell Telephone Labor Inc | ||||
| PDF File 2123178.pdf | 2.05 MB | Shaun Ewing | Jul 12, 1938 00:00 |
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US-2123178-A // Amplifier // Bode Hendrik W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.05 MB | Shaun Ewing | Jul 12, 1938 00:00 | US-2123178-A // Amplifier // Bode Hendrik W. // Bell Telephone Labor Inc | ||||
| PDF File 2123227.pdf | 531 kB | Shaun Ewing | Jul 12, 1938 00:00 |
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US-2123227-A // Piezoelectric device // Bieling Carl A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 531 kB | Shaun Ewing | Jul 12, 1938 00:00 | US-2123227-A // Piezoelectric device // Bieling Carl A. // Bell Telephone Labor Inc |
