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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2205072.pdf | 677 kB | Shaun Ewing | Jun 18, 1940 00:00 |
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US-2205072-A // Space discharge apparatus and circuits therefor // Skellett Albert M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 677 kB | Shaun Ewing | Jun 18, 1940 00:00 | US-2205072-A // Space discharge apparatus and circuits therefor // Skellett Albert M. // Bell Telephone Labor Inc | ||||
| PDF File 2205071.pdf | 1.10 MB | Shaun Ewing | Jun 18, 1940 00:00 |
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US-2205071-A // Space discharge apparatus and circuits therefor // Skellett Albert M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.10 MB | Shaun Ewing | Jun 18, 1940 00:00 | US-2205071-A // Space discharge apparatus and circuits therefor // Skellett Albert M. // Bell Telephone Labor Inc | ||||
| PDF File 2204762.pdf | 1.90 MB | Shaun Ewing | Jun 18, 1940 00:00 |
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US-2204762-A // Piezoelectric crystal apparatus // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.90 MB | Shaun Ewing | Jun 18, 1940 00:00 | US-2204762-A // Piezoelectric crystal apparatus // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2204759.pdf | 1019 kB | Shaun Ewing | Jun 18, 1940 00:00 |
|
US-2204759-A // Telephone system // Hubbard Francis A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1019 kB | Shaun Ewing | Jun 18, 1940 00:00 | US-2204759-A // Telephone system // Hubbard Francis A. // Bell Telephone Labor Inc | ||||
| PDF File 2204747.pdf | 525 kB | Shaun Ewing | Jun 18, 1940 00:00 |
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US-2204747-A // Coin collector apparatus // Blattner David G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 525 kB | Shaun Ewing | Jun 18, 1940 00:00 | US-2204747-A // Coin collector apparatus // Blattner David G. // Bell Telephone Labor Inc | ||||
| PDF File 2204183.pdf | 248 kB | Shaun Ewing | Jun 11, 1940 00:00 |
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US-2204183-A // Earpiece // Hulin Lynford S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 248 kB | Shaun Ewing | Jun 11, 1940 00:00 | US-2204183-A // Earpiece // Hulin Lynford S. // Bell Telephone Labor Inc | ||||
| PDF File 2204181.pdf | 406 kB | Shaun Ewing | Jun 11, 1940 00:00 |
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US-2204181-A // Call transmitter // Gleason Daniel H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 406 kB | Shaun Ewing | Jun 11, 1940 00:00 | US-2204181-A // Call transmitter // Gleason Daniel H. // Bell Telephone Labor Inc | ||||
| PDF File 2204083.pdf | 1.23 MB | Shaun Ewing | Jun 11, 1940 00:00 |
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US-2204083-A // Coin collector // Hoyt Frederick A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.23 MB | Shaun Ewing | Jun 11, 1940 00:00 | US-2204083-A // Coin collector // Hoyt Frederick A. // Bell Telephone Labor Inc | ||||
| PDF File 2204055.pdf | 1.02 MB | Shaun Ewing | Jun 11, 1940 00:00 |
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US-2204055-A // Telephone system // Skellett Albert M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.02 MB | Shaun Ewing | Jun 11, 1940 00:00 | US-2204055-A // Telephone system // Skellett Albert M. // Bell Telephone Labor Inc | ||||
| PDF File 2203870.pdf | 2.08 MB | Shaun Ewing | Jun 11, 1940 00:00 |
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US-2203870-A // Multiple channel electro-optical system // Knoop William A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.08 MB | Shaun Ewing | Jun 11, 1940 00:00 | US-2203870-A // Multiple channel electro-optical system // Knoop William A. // Bell Telephone Labor Inc | ||||
| PDF File 2203486.pdf | 508 kB | Shaun Ewing | Jun 04, 1940 00:00 |
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US-2203486-A // Supporting means for piezoelectric plates // Bond Walter L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 508 kB | Shaun Ewing | Jun 04, 1940 00:00 | US-2203486-A // Supporting means for piezoelectric plates // Bond Walter L. // Bell Telephone Labor Inc | ||||
| PDF File 2203469.pdf | 288 kB | Shaun Ewing | Jun 04, 1940 00:00 |
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US-2203469-A // Test lamp // Mesch Orwar S. A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 288 kB | Shaun Ewing | Jun 04, 1940 00:00 | US-2203469-A // Test lamp // Mesch Orwar S. A. // Bell Telephone Labor Inc | ||||
| PDF File 2203332.pdf | 572 kB | Shaun Ewing | Jun 04, 1940 00:00 |
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US-2203332-A // Piezoelectric device // Kinsley Thomas G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 572 kB | Shaun Ewing | Jun 04, 1940 00:00 | US-2203332-A // Piezoelectric device // Kinsley Thomas G. // Bell Telephone Labor Inc | ||||
| PDF File 2203321.pdf | 252 kB | Shaun Ewing | Jun 04, 1940 00:00 |
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US-2203321-A // Switching device // Bascom Henry M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 252 kB | Shaun Ewing | Jun 04, 1940 00:00 | US-2203321-A // Switching device // Bascom Henry M. // Bell Telephone Labor Inc | ||||
| PDF File 2203004.pdf | 445 kB | Shaun Ewing | Jun 04, 1940 00:00 |
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US-2203004-A // Amplifying apparatus // West Julian M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 445 kB | Shaun Ewing | Jun 04, 1940 00:00 | US-2203004-A // Amplifying apparatus // West Julian M. // Bell Telephone Labor Inc | ||||
| PDF File 2202921.pdf | 2.70 MB | Shaun Ewing | Jun 04, 1940 00:00 |
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US-2202921-A // Trouble recorder // Powell Albert C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.70 MB | Shaun Ewing | Jun 04, 1940 00:00 | US-2202921-A // Trouble recorder // Powell Albert C. // Bell Telephone Labor Inc | ||||
| PDF File 2202906.pdf | 382 kB | Shaun Ewing | Jun 04, 1940 00:00 |
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US-2202906-A // Telephone receiver // Hawley Melville S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 382 kB | Shaun Ewing | Jun 04, 1940 00:00 | US-2202906-A // Telephone receiver // Hawley Melville S. // Bell Telephone Labor Inc | ||||
| PDF File 2202474.pdf | 1000 kB | Shaun Ewing | May 28, 1940 00:00 |
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US-2202474-A // Telephone system // Vroom Edward // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1000 kB | Shaun Ewing | May 28, 1940 00:00 | US-2202474-A // Telephone system // Vroom Edward // Bell Telephone Labor Inc | ||||
| PDF File 2202467.pdf | 638 kB | Shaun Ewing | May 28, 1940 00:00 |
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US-2202467-A // Artificial larynx // Riesz Robert R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 638 kB | Shaun Ewing | May 28, 1940 00:00 | US-2202467-A // Artificial larynx // Riesz Robert R. // Bell Telephone Labor Inc | ||||
| PDF File 2202391.pdf | 836 kB | Shaun Ewing | May 28, 1940 00:00 |
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US-2202391-A // Piezoelectric apparatus // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 836 kB | Shaun Ewing | May 28, 1940 00:00 | US-2202391-A // Piezoelectric apparatus // Mason Warren P. // Bell Telephone Labor Inc |
