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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2114471.pdf | 598 kB | Shaun Ewing | Apr 19, 1938 00:00 |
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US-2114471-A // Sound recording and reproducing system // Keller Arthur C. ; Vernon Mount ; Rafuse Irad S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 598 kB | Shaun Ewing | Apr 19, 1938 00:00 | US-2114471-A // Sound recording and reproducing system // Keller Arthur C. ; Vernon Mount ; Rafuse Irad S. // Bell Telephone Labor Inc | ||||
| PDF File 2114477.pdf | 217 kB | Shaun Ewing | Apr 19, 1938 00:00 |
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US-2114477-A // Holder for memorandum pads // Ritchie George A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 217 kB | Shaun Ewing | Apr 19, 1938 00:00 | US-2114477-A // Holder for memorandum pads // Ritchie George A. // Bell Telephone Labor Inc | ||||
| PDF File 2114478.pdf | 649 kB | Shaun Ewing | Apr 19, 1938 00:00 |
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US-2114478-A // Oscillation generator // Samuel Arthur L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 649 kB | Shaun Ewing | Apr 19, 1938 00:00 | US-2114478-A // Oscillation generator // Samuel Arthur L. // Bell Telephone Labor Inc | ||||
| PDF File 2115133.pdf | 695 kB | Shaun Ewing | Apr 26, 1938 00:00 |
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US-2115133-A // Telephone system // Allison Sewell W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 695 kB | Shaun Ewing | Apr 26, 1938 00:00 | US-2115133-A // Telephone system // Allison Sewell W. // Bell Telephone Labor Inc | ||||
| PDF File 2115138.pdf | 1.47 MB | Shaun Ewing | Apr 26, 1938 00:00 |
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US-2115138-A // Wave transmission network // Darlington Sidney // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.47 MB | Shaun Ewing | Apr 26, 1938 00:00 | US-2115138-A // Wave transmission network // Darlington Sidney // Bell Telephone Labor Inc | ||||
| PDF File 2115140.pdf | 885 kB | Shaun Ewing | Apr 26, 1938 00:00 |
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US-2115140-A // Transmission control in signaling systems // Dickieson Alton C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 885 kB | Shaun Ewing | Apr 26, 1938 00:00 | US-2115140-A // Transmission control in signaling systems // Dickieson Alton C. // Bell Telephone Labor Inc | ||||
| PDF File 2115141.pdf | 669 kB | Shaun Ewing | Apr 26, 1938 00:00 |
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US-2115141-A // Transmission regulating system // Eckberg Curtis R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 669 kB | Shaun Ewing | Apr 26, 1938 00:00 | US-2115141-A // Transmission regulating system // Eckberg Curtis R. // Bell Telephone Labor Inc | ||||
| PDF File 2115143.pdf | 332 kB | Shaun Ewing | Apr 26, 1938 00:00 |
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US-2115143-A // Electrical cable // Harrison Henry C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 332 kB | Shaun Ewing | Apr 26, 1938 00:00 | US-2115143-A // Electrical cable // Harrison Henry C. // Bell Telephone Labor Inc | ||||
| PDF File 2115145.pdf | 1.42 MB | Shaun Ewing | Apr 26, 1938 00:00 |
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US-2115145-A // Piezoelectric crystal holder // Koerner Lawrence F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.42 MB | Shaun Ewing | Apr 26, 1938 00:00 | US-2115145-A // Piezoelectric crystal holder // Koerner Lawrence F. // Bell Telephone Labor Inc | ||||
| PDF File 2115148.pdf | 444 kB | Shaun Ewing | Apr 26, 1938 00:00 |
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US-2115148-A // Sound reproducing system // Pollard Charles E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 444 kB | Shaun Ewing | Apr 26, 1938 00:00 | US-2115148-A // Sound reproducing system // Pollard Charles E. // Bell Telephone Labor Inc | ||||
| PDF File 2115152.pdf | 500 kB | Shaun Ewing | Apr 26, 1938 00:00 |
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US-2115152-A // Protective and alarm system // Vroom Edward // Bell Telephone Labor Inc | |||
| Version 1 (current) | 500 kB | Shaun Ewing | Apr 26, 1938 00:00 | US-2115152-A // Protective and alarm system // Vroom Edward // Bell Telephone Labor Inc | ||||
| PDF File 2115801.pdf | 512 kB | Shaun Ewing | May 03, 1938 00:00 |
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US-2115801-A // Line overflow recorder // Collis Raymond E. ; Myers Oscar // Bell Telephone Labor Inc | |||
| Version 1 (current) | 512 kB | Shaun Ewing | May 03, 1938 00:00 | US-2115801-A // Line overflow recorder // Collis Raymond E. ; Myers Oscar // Bell Telephone Labor Inc | ||||
| PDF File 2115803.pdf | 1.23 MB | Shaun Ewing | May 03, 1938 00:00 |
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US-2115803-A // Signaling system // Dudley Homer W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.23 MB | Shaun Ewing | May 03, 1938 00:00 | US-2115803-A // Signaling system // Dudley Homer W. // Bell Telephone Labor Inc | ||||
| PDF File 2115804.pdf | 221 kB | Shaun Ewing | May 03, 1938 00:00 |
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US-2115804-A // Electromagnetic switch // Fondiller William // Bell Telephone Labor Inc | |||
| Version 1 (current) | 221 kB | Shaun Ewing | May 03, 1938 00:00 | US-2115804-A // Electromagnetic switch // Fondiller William // Bell Telephone Labor Inc | ||||
| PDF File 2115808.pdf | 566 kB | Shaun Ewing | May 03, 1938 00:00 |
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US-2115808-A // Electrical recorder // Germanton Charles E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 566 kB | Shaun Ewing | May 03, 1938 00:00 | US-2115808-A // Electrical recorder // Germanton Charles E. // Bell Telephone Labor Inc | ||||
| PDF File 2115818.pdf | 853 kB | Shaun Ewing | May 03, 1938 00:00 |
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US-2115818-A // Wave transmission network // Lakatos Emory // Bell Telephone Labor Inc | |||
| Version 1 (current) | 853 kB | Shaun Ewing | May 03, 1938 00:00 | US-2115818-A // Wave transmission network // Lakatos Emory // Bell Telephone Labor Inc | ||||
| PDF File 2115826.pdf | 1.10 MB | Shaun Ewing | May 03, 1938 00:00 |
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US-2115826-A // Impedance transformer // Norton Edward L. ; Wick Ronald F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.10 MB | Shaun Ewing | May 03, 1938 00:00 | US-2115826-A // Impedance transformer // Norton Edward L. ; Wick Ronald F. // Bell Telephone Labor Inc | ||||
| PDF File 2115828.pdf | 423 kB | Shaun Ewing | May 03, 1938 00:00 |
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US-2115828-A // Electron emitting cathode and method of preparation // Jr. Charles H. Prescott, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 423 kB | Shaun Ewing | May 03, 1938 00:00 | US-2115828-A // Electron emitting cathode and method of preparation // Jr. Charles H. Prescott, // Bell Telephone Labor Inc | ||||
| PDF File 2115836.pdf | 315 kB | Shaun Ewing | May 03, 1938 00:00 |
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US-2115836-A // Electromagnetic switching device // Zupa Frank A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 315 kB | Shaun Ewing | May 03, 1938 00:00 | US-2115836-A // Electromagnetic switching device // Zupa Frank A. // Bell Telephone Labor Inc | ||||
| PDF File 2116558.pdf | 929 kB | Shaun Ewing | May 10, 1938 00:00 |
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US-2116558-A // Signal control circuits // Bjornson Bjorn G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 929 kB | Shaun Ewing | May 10, 1938 00:00 | US-2116558-A // Signal control circuits // Bjornson Bjorn G. // Bell Telephone Labor Inc |
