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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2166536.pdf | 599 kB | Shaun Ewing | Jul 18, 1939 00:00 |
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US-2166536-A // Signaling system // Saul George N. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 599 kB | Shaun Ewing | Jul 18, 1939 00:00 | US-2166536-A // Signaling system // Saul George N. // Bell Telephone Labor Inc | ||||
| PDF File 2166632.pdf | 531 kB | Shaun Ewing | Jul 18, 1939 00:00 |
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US-2166632-A // Method of constructing concrete manholes // Hardesty James M. ; Sutton Stanford M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 531 kB | Shaun Ewing | Jul 18, 1939 00:00 | US-2166632-A // Method of constructing concrete manholes // Hardesty James M. ; Sutton Stanford M. // Bell Telephone Labor Inc | ||||
| PDF File 2166639.pdf | 795 kB | Shaun Ewing | Jul 18, 1939 00:00 |
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US-2166639-A // Coin collector apparatus // Jr. Robert L. Peek, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 795 kB | Shaun Ewing | Jul 18, 1939 00:00 | US-2166639-A // Coin collector apparatus // Jr. Robert L. Peek, // Bell Telephone Labor Inc | ||||
| PDF File 2166763.pdf | 1.30 MB | Shaun Ewing | Jul 18, 1939 00:00 |
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US-2166763-A // Piezoelectric apparatus and circuits // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.30 MB | Shaun Ewing | Jul 18, 1939 00:00 | US-2166763-A // Piezoelectric apparatus and circuits // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2166764.pdf | 622 kB | Shaun Ewing | Jul 18, 1939 00:00 |
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US-2166764-A // Switching mechanism // Matthies William H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 622 kB | Shaun Ewing | Jul 18, 1939 00:00 | US-2166764-A // Switching mechanism // Matthies William H. // Bell Telephone Labor Inc | ||||
| PDF File 2166929.pdf | 649 kB | Shaun Ewing | Jul 25, 1939 00:00 |
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US-2166929-A // Electric wave amplifying system // Caruthers Robert S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 649 kB | Shaun Ewing | Jul 25, 1939 00:00 | US-2166929-A // Electric wave amplifying system // Caruthers Robert S. // Bell Telephone Labor Inc | ||||
| PDF File 2167007.pdf | 1.16 MB | Shaun Ewing | Jul 25, 1939 00:00 |
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US-2167007-A // Transmission circuit // Schott Lionel ; Wright Sumner B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.16 MB | Shaun Ewing | Jul 25, 1939 00:00 | US-2167007-A // Transmission circuit // Schott Lionel ; Wright Sumner B. // Bell Telephone Labor Inc | ||||
| PDF File 2167016.pdf | 618 kB | Shaun Ewing | Jul 25, 1939 00:00 |
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US-2167016-A // Cross-talk reduction // Weaver Myron A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 618 kB | Shaun Ewing | Jul 25, 1939 00:00 | US-2167016-A // Cross-talk reduction // Weaver Myron A. // Bell Telephone Labor Inc | ||||
| PDF File 2167069.pdf | 451 kB | Shaun Ewing | Jul 25, 1939 00:00 |
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US-2167069-A // Transmission system // Halligan Clair W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 451 kB | Shaun Ewing | Jul 25, 1939 00:00 | US-2167069-A // Transmission system // Halligan Clair W. // Bell Telephone Labor Inc | ||||
| PDF File 2167078.pdf | 652 kB | Shaun Ewing | Jul 25, 1939 00:00 |
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US-2167078-A // Electromechanical system // Lakatos Emory // Bell Telephone Labor Inc | |||
| Version 1 (current) | 652 kB | Shaun Ewing | Jul 25, 1939 00:00 | US-2167078-A // Electromechanical system // Lakatos Emory // Bell Telephone Labor Inc | ||||
| PDF File 2167254.pdf | 428 kB | Shaun Ewing | Jul 25, 1939 00:00 |
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US-2167254-A // Piezoelectric vibrator oscillator // Skellett Albert M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 428 kB | Shaun Ewing | Jul 25, 1939 00:00 | US-2167254-A // Piezoelectric vibrator oscillator // Skellett Albert M. // Bell Telephone Labor Inc | ||||
| PDF File 2167367.pdf | 797 kB | Shaun Ewing | Jul 25, 1939 00:00 |
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US-2167367-A // Electric wave amplifying system // Meyers Stanley T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 797 kB | Shaun Ewing | Jul 25, 1939 00:00 | US-2167367-A // Electric wave amplifying system // Meyers Stanley T. // Bell Telephone Labor Inc | ||||
| PDF File 2167368.pdf | 610 kB | Shaun Ewing | Jul 25, 1939 00:00 |
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US-2167368-A // Electric wave amplifying system // Meyers Stanley T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 610 kB | Shaun Ewing | Jul 25, 1939 00:00 | US-2167368-A // Electric wave amplifying system // Meyers Stanley T. // Bell Telephone Labor Inc | ||||
| PDF File 2168047.pdf | 1.39 MB | Shaun Ewing | Aug 01, 1939 00:00 |
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US-2168047-A // Electro-optical system // Skellett Albert M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.39 MB | Shaun Ewing | Aug 01, 1939 00:00 | US-2168047-A // Electro-optical system // Skellett Albert M. // Bell Telephone Labor Inc | ||||
| PDF File 2168048.pdf | 639 kB | Shaun Ewing | Aug 01, 1939 00:00 |
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US-2168048-A // Electro-optical system // Skellett Albert M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 639 kB | Shaun Ewing | Aug 01, 1939 00:00 | US-2168048-A // Electro-optical system // Skellett Albert M. // Bell Telephone Labor Inc | ||||
| PDF File 2168049.pdf | 637 kB | Shaun Ewing | Aug 01, 1939 00:00 |
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US-2168049-A // Electro-optical system // Skellett Albert M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 637 kB | Shaun Ewing | Aug 01, 1939 00:00 | US-2168049-A // Electro-optical system // Skellett Albert M. // Bell Telephone Labor Inc | ||||
| PDF File 2168757.pdf | 636 kB | Shaun Ewing | Aug 08, 1939 00:00 |
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US-2168757-A // Cable plug in sleeves // Baillard Hamilton ; Pike Vernon B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 636 kB | Shaun Ewing | Aug 08, 1939 00:00 | US-2168757-A // Cable plug in sleeves // Baillard Hamilton ; Pike Vernon B. // Bell Telephone Labor Inc | ||||
| PDF File 2168760.pdf | 999 kB | Shaun Ewing | Aug 08, 1939 00:00 |
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US-2168760-A // Cathode ray device // Calbick Chester J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 999 kB | Shaun Ewing | Aug 08, 1939 00:00 | US-2168760-A // Cathode ray device // Calbick Chester J. // Bell Telephone Labor Inc | ||||
| PDF File 2168769.pdf | 246 kB | Shaun Ewing | Aug 08, 1939 00:00 |
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US-2168769-A // Protector // Fisher Earl L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 246 kB | Shaun Ewing | Aug 08, 1939 00:00 | US-2168769-A // Protector // Fisher Earl L. // Bell Telephone Labor Inc | ||||
| PDF File 2169179.pdf | 783 kB | Shaun Ewing | Aug 08, 1939 00:00 |
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US-2169179-A // Electrooptical system // Gray Frank // Bell Telephone Labor Inc | |||
| Version 1 (current) | 783 kB | Shaun Ewing | Aug 08, 1939 00:00 | US-2169179-A // Electrooptical system // Gray Frank // Bell Telephone Labor Inc |
