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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1931874.pdf | 366 kB | Shaun Ewing | Oct 24, 1933 00:00 |
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US-1931874-A // Electron discharge device // Mendenhall Hallam E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 366 kB | Shaun Ewing | Oct 24, 1933 00:00 | US-1931874-A // Electron discharge device // Mendenhall Hallam E. // Bell Telephone Labor Inc | ||||
| PDF File 1931873.pdf | 309 kB | Shaun Ewing | Oct 24, 1933 00:00 |
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US-1931873-A // Frequency control system // Marrison Warren A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 309 kB | Shaun Ewing | Oct 24, 1933 00:00 | US-1931873-A // Frequency control system // Marrison Warren A. // Bell Telephone Labor Inc | ||||
| PDF File 1931867.pdf | 1.16 MB | Shaun Ewing | Oct 24, 1933 00:00 |
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US-1931867-A // Battery control system // Holden William H. T. ; Jutson Robert P. ; Larew Joel L. // American Telephone & Telegraph ; Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.16 MB | Shaun Ewing | Oct 24, 1933 00:00 | US-1931867-A // Battery control system // Holden William H. T. ; Jutson Robert P. ; Larew Joel L. // American Telephone & Telegraph ; Bell Telephone Labor Inc | ||||
| PDF File 1931866.pdf | 796 kB | Shaun Ewing | Oct 24, 1933 00:00 |
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US-1931866-A // Gain control circuits // Heising Raymond A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 796 kB | Shaun Ewing | Oct 24, 1933 00:00 | US-1931866-A // Gain control circuits // Heising Raymond A. // Bell Telephone Labor Inc | ||||
| PDF File 1931063.pdf | 1.02 MB | Shaun Ewing | Oct 17, 1933 00:00 |
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US-1931063-A // Signal transmission system // Jr. Stephen Doba, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.02 MB | Shaun Ewing | Oct 17, 1933 00:00 | US-1931063-A // Signal transmission system // Jr. Stephen Doba, // Bell Telephone Labor Inc | ||||
| PDF File 1931036.pdf | 657 kB | Shaun Ewing | Oct 17, 1933 00:00 |
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US-1931036-A // Radio antenna supporting and accessory structure // Ryan Francis M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 657 kB | Shaun Ewing | Oct 17, 1933 00:00 | US-1931036-A // Radio antenna supporting and accessory structure // Ryan Francis M. // Bell Telephone Labor Inc | ||||
| PDF File 1931031.pdf | 691 kB | Shaun Ewing | Oct 17, 1933 00:00 |
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US-1931031-A // Signal transmission system // Nebel Charles N. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 691 kB | Shaun Ewing | Oct 17, 1933 00:00 | US-1931031-A // Signal transmission system // Nebel Charles N. // Bell Telephone Labor Inc | ||||
| PDF File 1931028.pdf | 781 kB | Shaun Ewing | Oct 17, 1933 00:00 |
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US-1931028-A // Piezo-electric relay // Marrison Warren A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 781 kB | Shaun Ewing | Oct 17, 1933 00:00 | US-1931028-A // Piezo-electric relay // Marrison Warren A. // Bell Telephone Labor Inc | ||||
| PDF File 1930915.pdf | 559 kB | Shaun Ewing | Oct 17, 1933 00:00 |
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US-1930915-A // Acoustic device // Wente Edward C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 559 kB | Shaun Ewing | Oct 17, 1933 00:00 | US-1930915-A // Acoustic device // Wente Edward C. // Bell Telephone Labor Inc | ||||
| PDF File 1930913.pdf | 654 kB | Shaun Ewing | Oct 17, 1933 00:00 |
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US-1930913-A // Film editing machine // Terry Roy V. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 654 kB | Shaun Ewing | Oct 17, 1933 00:00 | US-1930913-A // Film editing machine // Terry Roy V. // Bell Telephone Labor Inc | ||||
| PDF File 1930906.pdf | 632 kB | Shaun Ewing | Oct 17, 1933 00:00 |
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US-1930906-A // Sound translating device // Nordenswan Robert // Bell Telephone Labor Inc | |||
| Version 1 (current) | 632 kB | Shaun Ewing | Oct 17, 1933 00:00 | US-1930906-A // Sound translating device // Nordenswan Robert // Bell Telephone Labor Inc | ||||
| PDF File 1930898.pdf | 365 kB | Shaun Ewing | Oct 17, 1933 00:00 |
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US-1930898-A // Program transmission // Johnson Kenneth S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 365 kB | Shaun Ewing | Oct 17, 1933 00:00 | US-1930898-A // Program transmission // Johnson Kenneth S. // Bell Telephone Labor Inc | ||||
| PDF File 1930279.pdf | 840 kB | Shaun Ewing | Oct 10, 1933 00:00 |
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US-1930279-A // Motor control system // Morton Edmund R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 840 kB | Shaun Ewing | Oct 10, 1933 00:00 | US-1930279-A // Motor control system // Morton Edmund R. // Bell Telephone Labor Inc | ||||
| PDF File 1930278.pdf | 587 kB | Shaun Ewing | Oct 10, 1933 00:00 |
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US-1930278-A // Oscillation generator // Marrison Warren A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 587 kB | Shaun Ewing | Oct 10, 1933 00:00 | US-1930278-A // Oscillation generator // Marrison Warren A. // Bell Telephone Labor Inc | ||||
| PDF File 1930275.pdf | 491 kB | Shaun Ewing | Oct 10, 1933 00:00 |
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US-1930275-A // Telephone switchboard // Knowlton Alfred D. ; Gilmore Alfred C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 491 kB | Shaun Ewing | Oct 10, 1933 00:00 | US-1930275-A // Telephone switchboard // Knowlton Alfred D. ; Gilmore Alfred C. // Bell Telephone Labor Inc | ||||
| PDF File 1930274.pdf | 337 kB | Shaun Ewing | Oct 10, 1933 00:00 |
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US-1930274-A // Insulating compound // Kemp Archie R. ; Ingmanson John H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 337 kB | Shaun Ewing | Oct 10, 1933 00:00 | US-1930274-A // Insulating compound // Kemp Archie R. ; Ingmanson John H. // Bell Telephone Labor Inc | ||||
| PDF File 1930270.pdf | 685 kB | Shaun Ewing | Oct 10, 1933 00:00 |
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US-1930270-A // Portable telephone set // Hayward John M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 685 kB | Shaun Ewing | Oct 10, 1933 00:00 | US-1930270-A // Portable telephone set // Hayward John M. // Bell Telephone Labor Inc | ||||
| PDF File 1930269.pdf | 555 kB | Shaun Ewing | Oct 10, 1933 00:00 |
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US-1930269-A // Inductance device // Greenidge Ralph M. C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 555 kB | Shaun Ewing | Oct 10, 1933 00:00 | US-1930269-A // Inductance device // Greenidge Ralph M. C. // Bell Telephone Labor Inc | ||||
| PDF File 1930267.pdf | 448 kB | Shaun Ewing | Oct 10, 1933 00:00 |
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US-1930267-A // Testing and adjusting device // Gibson Robert D. ; Harley John B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 448 kB | Shaun Ewing | Oct 10, 1933 00:00 | US-1930267-A // Testing and adjusting device // Gibson Robert D. ; Harley John B. // Bell Telephone Labor Inc | ||||
| PDF File 1930264.pdf | 344 kB | Shaun Ewing | Oct 10, 1933 00:00 |
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US-1930264-A // Electric current interrupter // Curtis Austen M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 344 kB | Shaun Ewing | Oct 10, 1933 00:00 | US-1930264-A // Electric current interrupter // Curtis Austen M. // Bell Telephone Labor Inc |
