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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1865004.pdf | 572 kB | Shaun Ewing | Jun 28, 1932 00:00 |
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US-1865004-A // Reference electrode // Haring Horace E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 572 kB | Shaun Ewing | Jun 28, 1932 00:00 | US-1865004-A // Reference electrode // Haring Horace E. // Bell Telephone Labor Inc | ||||
| PDF File 1816906.pdf | 571 kB | Shaun Ewing | Aug 04, 1931 00:00 |
|
US-1816906-A // Electromagnetic device // Jones Warren C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 571 kB | Shaun Ewing | Aug 04, 1931 00:00 | US-1816906-A // Electromagnetic device // Jones Warren C. // Bell Telephone Labor Inc | ||||
| PDF File 1938694.pdf | 571 kB | Shaun Ewing | Dec 12, 1933 00:00 |
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US-1938694-A // Sound film recording apparatus // Goehner William R. ; Herriott William // Bell Telephone Labor Inc | |||
| Version 1 (current) | 571 kB | Shaun Ewing | Dec 12, 1933 00:00 | US-1938694-A // Sound film recording apparatus // Goehner William R. ; Herriott William // Bell Telephone Labor Inc | ||||
| PDF File 2107154.pdf | 571 kB | Shaun Ewing | Feb 01, 1938 00:00 |
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US-2107154-A // Telephone signaling system // King Ralph E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 571 kB | Shaun Ewing | Feb 01, 1938 00:00 | US-2107154-A // Telephone signaling system // King Ralph E. // Bell Telephone Labor Inc | ||||
| PDF File 1916358.pdf | 571 kB | Shaun Ewing | Jul 04, 1933 00:00 |
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US-1916358-A // Radio direction finder // Bruce Edmond ; Friis Harald T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 571 kB | Shaun Ewing | Jul 04, 1933 00:00 | US-1916358-A // Radio direction finder // Bruce Edmond ; Friis Harald T. // Bell Telephone Labor Inc | ||||
| PDF File 1792650.pdf | 570 kB | Shaun Ewing | Feb 17, 1931 00:00 |
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US-1792650-A // Regulator system // Manderfeld Emanuel C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 570 kB | Shaun Ewing | Feb 17, 1931 00:00 | US-1792650-A // Regulator system // Manderfeld Emanuel C. // Bell Telephone Labor Inc | ||||
| PDF File 2083416.pdf | 570 kB | Shaun Ewing | Jun 08, 1937 00:00 |
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US-2083416-A // Radio direction finding system // Aiken Charles B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 570 kB | Shaun Ewing | Jun 08, 1937 00:00 | US-2083416-A // Radio direction finding system // Aiken Charles B. // Bell Telephone Labor Inc | ||||
| PDF File 2130517.pdf | 569 kB | Shaun Ewing | Sept 20, 1938 00:00 |
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US-2130517-A // Gain control circuits // Wilson Ira G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 569 kB | Shaun Ewing | Sept 20, 1938 00:00 | US-2130517-A // Gain control circuits // Wilson Ira G. // Bell Telephone Labor Inc | ||||
| PDF File 2019624.pdf | 569 kB | Shaun Ewing | Nov 05, 1935 00:00 |
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US-2019624-A // Attenuation equalizer // Norton Edward L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 569 kB | Shaun Ewing | Nov 05, 1935 00:00 | US-2019624-A // Attenuation equalizer // Norton Edward L. // Bell Telephone Labor Inc | ||||
| PDF File 1804087.pdf | 569 kB | Shaun Ewing | May 05, 1931 00:00 |
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US-1804087-A // Wave amplifying system // Bruce Edmond ; Friis Harald T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 569 kB | Shaun Ewing | May 05, 1931 00:00 | US-1804087-A // Wave amplifying system // Bruce Edmond ; Friis Harald T. // Bell Telephone Labor Inc | ||||
| PDF File 2047383.pdf | 569 kB | Shaun Ewing | Jul 14, 1936 00:00 |
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US-2047383-A // Switching mechanism // Reynolds John N. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 569 kB | Shaun Ewing | Jul 14, 1936 00:00 | US-2047383-A // Switching mechanism // Reynolds John N. // Bell Telephone Labor Inc | ||||
| PDF File 2041487.pdf | 569 kB | Shaun Ewing | May 19, 1936 00:00 |
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US-2041487-A // Artificial larynx // Riesz Robert R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 569 kB | Shaun Ewing | May 19, 1936 00:00 | US-2041487-A // Artificial larynx // Riesz Robert R. // Bell Telephone Labor Inc | ||||
| PDF File 2081405.pdf | 569 kB | Shaun Ewing | May 25, 1937 00:00 |
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US-2081405-A // Wave filter // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 569 kB | Shaun Ewing | May 25, 1937 00:00 | US-2081405-A // Wave filter // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2086110.pdf | 569 kB | Shaun Ewing | Jul 06, 1937 00:00 |
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US-2086110-A // Repertory dialing device // Allen Lawrence H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 569 kB | Shaun Ewing | Jul 06, 1937 00:00 | US-2086110-A // Repertory dialing device // Allen Lawrence H. // Bell Telephone Labor Inc | ||||
| PDF File 1981649.pdf | 568 kB | Shaun Ewing | Nov 20, 1934 00:00 |
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US-1981649-A // Telephone substation apparatus // King Douglas H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 568 kB | Shaun Ewing | Nov 20, 1934 00:00 | US-1981649-A // Telephone substation apparatus // King Douglas H. // Bell Telephone Labor Inc | ||||
| PDF File 1809879.pdf | 568 kB | Shaun Ewing | Jun 16, 1931 00:00 |
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US-1809879-A // Circuits for electromagnetic devices // Whittle Horace // Bell Telephone Labor Inc | |||
| Version 1 (current) | 568 kB | Shaun Ewing | Jun 16, 1931 00:00 | US-1809879-A // Circuits for electromagnetic devices // Whittle Horace // Bell Telephone Labor Inc | ||||
| PDF File 1910978.pdf | 568 kB | Shaun Ewing | May 23, 1933 00:00 |
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US-1910978-A // Coin collection apparatus // Allison Malcolm G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 568 kB | Shaun Ewing | May 23, 1933 00:00 | US-1910978-A // Coin collection apparatus // Allison Malcolm G. // Bell Telephone Labor Inc | ||||
| PDF File 2042821.pdf | 568 kB | Shaun Ewing | Jun 02, 1936 00:00 |
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US-2042821-A // Telephone transmitter // Bennett Arthur F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 568 kB | Shaun Ewing | Jun 02, 1936 00:00 | US-2042821-A // Telephone transmitter // Bennett Arthur F. // Bell Telephone Labor Inc | ||||
| PDF File 2131589.pdf | 568 kB | Shaun Ewing | Sept 27, 1938 00:00 |
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US-2131589-A // Signaling system // Halligan Clair W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 568 kB | Shaun Ewing | Sept 27, 1938 00:00 | US-2131589-A // Signaling system // Halligan Clair W. // Bell Telephone Labor Inc | ||||
| PDF File 2227048.pdf | 567 kB | Shaun Ewing | Dec 31, 1940 00:00 |
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US-2227048-A // Negative feedback amplifier // West Julian M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 567 kB | Shaun Ewing | Dec 31, 1940 00:00 | US-2227048-A // Negative feedback amplifier // West Julian M. // Bell Telephone Labor Inc |
