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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2197513.pdf | 393 kB | Shaun Ewing | Apr 16, 1940 00:00 |
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US-2197513-A // Loading apparatus case // Bardsley Joseph R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 393 kB | Shaun Ewing | Apr 16, 1940 00:00 | US-2197513-A // Loading apparatus case // Bardsley Joseph R. // Bell Telephone Labor Inc | ||||
| PDF File 2197844.pdf | 400 kB | Shaun Ewing | Apr 23, 1940 00:00 |
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US-2197844-A // Telephone substation apparatus // Walker Albert C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 400 kB | Shaun Ewing | Apr 23, 1940 00:00 | US-2197844-A // Telephone substation apparatus // Walker Albert C. // Bell Telephone Labor Inc | ||||
| PDF File 2197868.pdf | 484 kB | Shaun Ewing | Apr 23, 1940 00:00 |
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US-2197868-A // High or low voltage indicating system // Knowlton Clarence S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 484 kB | Shaun Ewing | Apr 23, 1940 00:00 | US-2197868-A // High or low voltage indicating system // Knowlton Clarence S. // Bell Telephone Labor Inc | ||||
| PDF File 2198326.pdf | 1.89 MB | Shaun Ewing | Apr 23, 1940 00:00 |
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US-2198326-A // Program switching system // Bachelet Albert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.89 MB | Shaun Ewing | Apr 23, 1940 00:00 | US-2198326-A // Program switching system // Bachelet Albert E. // Bell Telephone Labor Inc | ||||
| PDF File 2198513.pdf | 264 kB | Shaun Ewing | Apr 23, 1940 00:00 |
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US-2198513-A // Lamp // Knoop William A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 264 kB | Shaun Ewing | Apr 23, 1940 00:00 | US-2198513-A // Lamp // Knoop William A. // Bell Telephone Labor Inc | ||||
| PDF File 2198684.pdf | 1.20 MB | Shaun Ewing | Apr 30, 1940 00:00 |
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US-2198684-A // Wave filter // Sykes Roger A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.20 MB | Shaun Ewing | Apr 30, 1940 00:00 | US-2198684-A // Wave filter // Sykes Roger A. // Bell Telephone Labor Inc | ||||
| PDF File 2199080.pdf | 191 kB | Shaun Ewing | Apr 30, 1940 00:00 |
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US-2199080-A // Gain control system // Norman Nathaniel C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 191 kB | Shaun Ewing | Apr 30, 1940 00:00 | US-2199080-A // Gain control system // Norman Nathaniel C. // Bell Telephone Labor Inc | ||||
| PDF File 2199083.pdf | 668 kB | Shaun Ewing | Apr 30, 1940 00:00 |
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US-2199083-A // Transmission of guided waves // Schelkunoff Sergei Alexander // Bell Telephone Labor Inc | |||
| Version 1 (current) | 668 kB | Shaun Ewing | Apr 30, 1940 00:00 | US-2199083-A // Transmission of guided waves // Schelkunoff Sergei Alexander // Bell Telephone Labor Inc | ||||
| PDF File 2199219.pdf | 1.17 MB | Shaun Ewing | Apr 30, 1940 00:00 |
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US-2199219-A // Terminal block // Edwards William H. ; Porter George C. ; Terry Roy V. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.17 MB | Shaun Ewing | Apr 30, 1940 00:00 | US-2199219-A // Terminal block // Edwards William H. ; Porter George C. ; Terry Roy V. // Bell Telephone Labor Inc | ||||
| PDF File 2199221.pdf | 520 kB | Shaun Ewing | Apr 30, 1940 00:00 |
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US-2199221-A // Wave filter // Gilman George William // Bell Telephone Labor Inc | |||
| Version 1 (current) | 520 kB | Shaun Ewing | Apr 30, 1940 00:00 | US-2199221-A // Wave filter // Gilman George William // Bell Telephone Labor Inc | ||||
| PDF File 2199431.pdf | 402 kB | Shaun Ewing | May 07, 1940 00:00 |
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US-2199431-A // Telephone signaling system // Holden William H. T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 402 kB | Shaun Ewing | May 07, 1940 00:00 | US-2199431-A // Telephone signaling system // Holden William H. T. // Bell Telephone Labor Inc | ||||
| PDF File 2199433.pdf | 612 kB | Shaun Ewing | May 07, 1940 00:00 |
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US-2199433-A // Optical scanning apparatus using mirror helix // Ives Herbert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 612 kB | Shaun Ewing | May 07, 1940 00:00 | US-2199433-A // Optical scanning apparatus using mirror helix // Ives Herbert E. // Bell Telephone Labor Inc | ||||
| PDF File 2199558.pdf | 600 kB | Shaun Ewing | May 07, 1940 00:00 |
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US-2199558-A // Ground potential compensator // Cummings George C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 600 kB | Shaun Ewing | May 07, 1940 00:00 | US-2199558-A // Ground potential compensator // Cummings George C. // Bell Telephone Labor Inc | ||||
| PDF File 2199559.pdf | 369 kB | Shaun Ewing | May 07, 1940 00:00 |
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US-2199559-A // Sound picture film // Dawson Wilfrid L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 369 kB | Shaun Ewing | May 07, 1940 00:00 | US-2199559-A // Sound picture film // Dawson Wilfrid L. // Bell Telephone Labor Inc | ||||
| PDF File 2199820.pdf | 358 kB | Shaun Ewing | May 07, 1940 00:00 |
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US-2199820-A // Coupling circuits // Gannett Danforth K. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 358 kB | Shaun Ewing | May 07, 1940 00:00 | US-2199820-A // Coupling circuits // Gannett Danforth K. // Bell Telephone Labor Inc | ||||
| PDF File 2199824.pdf | 685 kB | Shaun Ewing | May 07, 1940 00:00 |
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US-2199824-A // Signaling system // Kinkead Fullerton S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 685 kB | Shaun Ewing | May 07, 1940 00:00 | US-2199824-A // Signaling system // Kinkead Fullerton S. // Bell Telephone Labor Inc | ||||
| PDF File 2199909.pdf | 280 kB | Shaun Ewing | May 07, 1940 00:00 |
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US-2199909-A // Nonsparking electromagnetic signaling and switching device // Burton Everett T. ; Curtis Austen M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 280 kB | Shaun Ewing | May 07, 1940 00:00 | US-2199909-A // Nonsparking electromagnetic signaling and switching device // Burton Everett T. ; Curtis Austen M. // Bell Telephone Labor Inc | ||||
| PDF File 2199921.pdf | 829 kB | Shaun Ewing | May 07, 1940 00:00 |
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US-2199921-A // Wave filter // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 829 kB | Shaun Ewing | May 07, 1940 00:00 | US-2199921-A // Wave filter // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2200059.pdf | 492 kB | Shaun Ewing | May 07, 1940 00:00 |
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US-2200059-A // Electrical terminal // Coyne Howard L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 492 kB | Shaun Ewing | May 07, 1940 00:00 | US-2200059-A // Electrical terminal // Coyne Howard L. // Bell Telephone Labor Inc | ||||
| PDF File 2200063.pdf | 819 kB | Shaun Ewing | May 07, 1940 00:00 |
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US-2200063-A // Space discharge apparatus and circuits // Heising Raymond A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 819 kB | Shaun Ewing | May 07, 1940 00:00 | US-2200063-A // Space discharge apparatus and circuits // Heising Raymond A. // Bell Telephone Labor Inc |
