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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1836810.pdf | 1.21 MB | Shaun Ewing | Dec 15, 1931 00:00 |
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US-1836810-A // Distortion correction in transmission systems // Mason Warren Perry // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.21 MB | Shaun Ewing | Dec 15, 1931 00:00 | US-1836810-A // Distortion correction in transmission systems // Mason Warren Perry // Bell Telephone Labor Inc | ||||
| PDF File 1836816.pdf | 447 kB | Shaun Ewing | Dec 15, 1931 00:00 |
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US-1836816-A // Artificial larynx // Riesz Robert R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 447 kB | Shaun Ewing | Dec 15, 1931 00:00 | US-1836816-A // Artificial larynx // Riesz Robert R. // Bell Telephone Labor Inc | ||||
| PDF File 1836824.pdf | 1.11 MB | Shaun Ewing | Dec 15, 1931 00:00 |
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US-1836824-A // Wave transmission with narrowed bands // Steinberg John C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.11 MB | Shaun Ewing | Dec 15, 1931 00:00 | US-1836824-A // Wave transmission with narrowed bands // Steinberg John C. // Bell Telephone Labor Inc | ||||
| PDF File 1836829.pdf | 371 kB | Shaun Ewing | Dec 15, 1931 00:00 |
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US-1836829-A // Electric discharge device // Weinhart Howard W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 371 kB | Shaun Ewing | Dec 15, 1931 00:00 | US-1836829-A // Electric discharge device // Weinhart Howard W. // Bell Telephone Labor Inc | ||||
| PDF File 1836841.pdf | 940 kB | Shaun Ewing | Dec 15, 1931 00:00 |
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US-1836841-A // Electric wave signaling system // Dudley Homer W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 940 kB | Shaun Ewing | Dec 15, 1931 00:00 | US-1836841-A // Electric wave signaling system // Dudley Homer W. // Bell Telephone Labor Inc | ||||
| PDF File 1836844.pdf | 1.16 MB | Shaun Ewing | Dec 15, 1931 00:00 |
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US-1836844-A // Distortion correction in transmission systems // Fry Thornton C. ; Struik Dirk J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.16 MB | Shaun Ewing | Dec 15, 1931 00:00 | US-1836844-A // Distortion correction in transmission systems // Fry Thornton C. ; Struik Dirk J. // Bell Telephone Labor Inc | ||||
| PDF File 1837202.pdf | 466 kB | Shaun Ewing | Dec 22, 1931 00:00 |
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US-1837202-A // Circuit breaker // Burton Everett T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 466 kB | Shaun Ewing | Dec 22, 1931 00:00 | US-1837202-A // Circuit breaker // Burton Everett T. // Bell Telephone Labor Inc | ||||
| PDF File 1837206.pdf | 3.99 MB | Shaun Ewing | Dec 22, 1931 00:00 |
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US-1837206-A // Call charging telephone exchange system // Collis Raymond E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.99 MB | Shaun Ewing | Dec 22, 1931 00:00 | US-1837206-A // Call charging telephone exchange system // Collis Raymond E. // Bell Telephone Labor Inc | ||||
| PDF File 1837217.pdf | 631 kB | Shaun Ewing | Dec 22, 1931 00:00 |
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US-1837217-A // Telephone card holder // Hayward John M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 631 kB | Shaun Ewing | Dec 22, 1931 00:00 | US-1837217-A // Telephone card holder // Hayward John M. // Bell Telephone Labor Inc | ||||
| PDF File 1837229.pdf | 878 kB | Shaun Ewing | Dec 22, 1931 00:00 |
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US-1837229-A // Distortion correction in transmission systems // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 878 kB | Shaun Ewing | Dec 22, 1931 00:00 | US-1837229-A // Distortion correction in transmission systems // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 1837237.pdf | 532 kB | Shaun Ewing | Dec 22, 1931 00:00 |
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US-1837237-A // Telegraph apparatus // Shangle Amos H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 532 kB | Shaun Ewing | Dec 22, 1931 00:00 | US-1837237-A // Telegraph apparatus // Shangle Amos H. // Bell Telephone Labor Inc | ||||
| PDF File 1837238.pdf | 173 kB | Shaun Ewing | Dec 22, 1931 00:00 |
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US-1837238-A // Method of making electrical switch contacts // Siegmund Humphreys O. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 173 kB | Shaun Ewing | Dec 22, 1931 00:00 | US-1837238-A // Method of making electrical switch contacts // Siegmund Humphreys O. // Bell Telephone Labor Inc | ||||
| PDF File 1837355.pdf | 336 kB | Shaun Ewing | Dec 22, 1931 00:00 |
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US-1837355-A // Electrodeposition of alloys // Burns Robert M. ; Warner Clarence W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 336 kB | Shaun Ewing | Dec 22, 1931 00:00 | US-1837355-A // Electrodeposition of alloys // Burns Robert M. ; Warner Clarence W. // Bell Telephone Labor Inc | ||||
| PDF File 1837364.pdf | 511 kB | Shaun Ewing | Dec 22, 1931 00:00 |
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US-1837364-A // Signaling apparatus // Ives Herbert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 511 kB | Shaun Ewing | Dec 22, 1931 00:00 | US-1837364-A // Signaling apparatus // Ives Herbert E. // Bell Telephone Labor Inc | ||||
| PDF File 1837365.pdf | 436 kB | Shaun Ewing | Dec 22, 1931 00:00 |
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US-1837365-A // Light sensitive device // Ives Herbert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 436 kB | Shaun Ewing | Dec 22, 1931 00:00 | US-1837365-A // Light sensitive device // Ives Herbert E. // Bell Telephone Labor Inc | ||||
| PDF File 1837373.pdf | 738 kB | Shaun Ewing | Dec 22, 1931 00:00 |
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US-1837373-A // Glass working machine // Ronci Victor L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 738 kB | Shaun Ewing | Dec 22, 1931 00:00 | US-1837373-A // Glass working machine // Ronci Victor L. // Bell Telephone Labor Inc | ||||
| PDF File 1837385.pdf | 652 kB | Shaun Ewing | Dec 22, 1931 00:00 |
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US-1837385-A // Sound radiator // Wegel Raymond L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 652 kB | Shaun Ewing | Dec 22, 1931 00:00 | US-1837385-A // Sound radiator // Wegel Raymond L. // Bell Telephone Labor Inc | ||||
| PDF File 1837413.pdf | 285 kB | Shaun Ewing | Dec 22, 1931 00:00 |
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US-1837413-A // Inductive coupling device // Dobson Ellsworth S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 285 kB | Shaun Ewing | Dec 22, 1931 00:00 | US-1837413-A // Inductive coupling device // Dobson Ellsworth S. // Bell Telephone Labor Inc | ||||
| PDF File 1837448.pdf | 250 kB | Shaun Ewing | Dec 22, 1931 00:00 |
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US-1837448-A // Signaling system // Krom Myron E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 250 kB | Shaun Ewing | Dec 22, 1931 00:00 | US-1837448-A // Signaling system // Krom Myron E. // Bell Telephone Labor Inc | ||||
| PDF File 1838027.pdf | 619 kB | Shaun Ewing | Dec 22, 1931 00:00 |
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US-1838027-A // Electrodynamic device // Clarke Harry R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 619 kB | Shaun Ewing | Dec 22, 1931 00:00 | US-1838027-A // Electrodynamic device // Clarke Harry R. // Bell Telephone Labor Inc |
