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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| 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 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 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 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 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 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 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 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 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 2204759.pdf | 1019 kB | Shaun Ewing | Jun 18, 1940 00:00 |
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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 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 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 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 2205551.pdf | 1.12 MB | Shaun Ewing | Jun 25, 1940 00:00 |
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US-2205551-A // Telephone system // Williams Samuel B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.12 MB | Shaun Ewing | Jun 25, 1940 00:00 | US-2205551-A // Telephone system // Williams Samuel B. // Bell Telephone Labor Inc | ||||
| PDF File 2205840.pdf | 293 kB | Shaun Ewing | Jun 25, 1940 00:00 |
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US-2205840-A // Dielectric material // White Addison H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 293 kB | Shaun Ewing | Jun 25, 1940 00:00 | US-2205840-A // Dielectric material // White Addison H. // Bell Telephone Labor Inc | ||||
| PDF File 2205843.pdf | 509 kB | Shaun Ewing | Jun 25, 1940 00:00 |
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US-2205843-A // Double balanced modulating system // Caruthers Robert S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 509 kB | Shaun Ewing | Jun 25, 1940 00:00 | US-2205843-A // Double balanced modulating system // Caruthers Robert S. // Bell Telephone Labor Inc | ||||
| PDF File 2206080.pdf | 922 kB | Shaun Ewing | Jul 02, 1940 00:00 |
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US-2206080-A // Transmission control and signaling system // Davis Kingsbury H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 922 kB | Shaun Ewing | Jul 02, 1940 00:00 | US-2206080-A // Transmission control and signaling system // Davis Kingsbury H. // Bell Telephone Labor Inc | ||||
| PDF File 2206146.pdf | 2.12 MB | Shaun Ewing | Jul 02, 1940 00:00 |
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US-2206146-A // Control of transmission and two-way signaling systems // Wright Sumner B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.12 MB | Shaun Ewing | Jul 02, 1940 00:00 | US-2206146-A // Control of transmission and two-way signaling systems // Wright Sumner B. // Bell Telephone Labor Inc | ||||
| PDF File 2206217.pdf | 637 kB | Shaun Ewing | Jul 02, 1940 00:00 |
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US-2206217-A // Lamp mounting // Barry David P. ; Seltzer George J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 637 kB | Shaun Ewing | Jul 02, 1940 00:00 | US-2206217-A // Lamp mounting // Barry David P. ; Seltzer George J. // Bell Telephone Labor Inc | ||||
| PDF File 2206224.pdf | 419 kB | Shaun Ewing | Jul 02, 1940 00:00 |
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US-2206224-A // Telephone call transmitter // Field Joseph C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 419 kB | Shaun Ewing | Jul 02, 1940 00:00 | US-2206224-A // Telephone call transmitter // Field Joseph C. // Bell Telephone Labor Inc |
