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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2175366.pdf | 492 kB | Shaun Ewing | Oct 10, 1939 00:00 |
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US-2175366-A // Communication system // Shetzline Roy A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 492 kB | Shaun Ewing | Oct 10, 1939 00:00 | US-2175366-A // Communication system // Shetzline Roy A. // Bell Telephone Labor Inc | ||||
| PDF File 2175358.pdf | 700 kB | Shaun Ewing | Oct 10, 1939 00:00 |
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US-2175358-A // Communication system // Mertz Pierre // Bell Telephone Labor Inc | |||
| Version 1 (current) | 700 kB | Shaun Ewing | Oct 10, 1939 00:00 | US-2175358-A // Communication system // Mertz Pierre // Bell Telephone Labor Inc | ||||
| PDF File 2175202.pdf | 582 kB | Shaun Ewing | Oct 10, 1939 00:00 |
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US-2175202-A // Communication system // Leibe Frank A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 582 kB | Shaun Ewing | Oct 10, 1939 00:00 | US-2175202-A // Communication system // Leibe Frank A. // Bell Telephone Labor Inc | ||||
| PDF File 2174592.pdf | 631 kB | Shaun Ewing | Oct 03, 1939 00:00 |
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US-2174592-A // Relay // Jr. Robert L. Peek, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 631 kB | Shaun Ewing | Oct 03, 1939 00:00 | US-2174592-A // Relay // Jr. Robert L. Peek, // Bell Telephone Labor Inc | ||||
| PDF File 2174230.pdf | 300 kB | Shaun Ewing | Sept 26, 1939 00:00 |
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US-2174230-A // Holder for electrically heated tools // Shangle Amos H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 300 kB | Shaun Ewing | Sept 26, 1939 00:00 | US-2174230-A // Holder for electrically heated tools // Shangle Amos H. // Bell Telephone Labor Inc | ||||
| PDF File 2174221.pdf | 538 kB | Shaun Ewing | Sept 26, 1939 00:00 |
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US-2174221-A // Telegraph signaling repeater // Cramer Walter W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 538 kB | Shaun Ewing | Sept 26, 1939 00:00 | US-2174221-A // Telegraph signaling repeater // Cramer Walter W. // Bell Telephone Labor Inc | ||||
| PDF File 2174165.pdf | 352 kB | Shaun Ewing | Sept 26, 1939 00:00 |
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US-2174165-A // Alternating current wave production // Peterson Eugene // Bell Telephone Labor Inc | |||
| Version 1 (current) | 352 kB | Shaun Ewing | Sept 26, 1939 00:00 | US-2174165-A // Alternating current wave production // Peterson Eugene // Bell Telephone Labor Inc | ||||
| PDF File 2174151.pdf | 1.06 MB | Shaun Ewing | Sept 26, 1939 00:00 |
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US-2174151-A // Transmission system // Bjornson Bjorn G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.06 MB | Shaun Ewing | Sept 26, 1939 00:00 | US-2174151-A // Transmission system // Bjornson Bjorn G. // Bell Telephone Labor Inc | ||||
| PDF File 2174006.pdf | 807 kB | Shaun Ewing | Sept 26, 1939 00:00 |
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US-2174006-A // Signaling system // Miller Ohmer R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 807 kB | Shaun Ewing | Sept 26, 1939 00:00 | US-2174006-A // Signaling system // Miller Ohmer R. // Bell Telephone Labor Inc | ||||
| PDF File 2174003.pdf | 389 kB | Shaun Ewing | Sept 26, 1939 00:00 |
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US-2174003-A // Optical device // Ives Herbert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 389 kB | Shaun Ewing | Sept 26, 1939 00:00 | US-2174003-A // Optical device // Ives Herbert E. // Bell Telephone Labor Inc | ||||
| PDF File 2173924.pdf | 1.81 MB | Shaun Ewing | Sept 26, 1939 00:00 |
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US-2173924-A // Telephone system // Toomey John F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.81 MB | Shaun Ewing | Sept 26, 1939 00:00 | US-2173924-A // Telephone system // Toomey John F. // Bell Telephone Labor Inc | ||||
| PDF File 2173923.pdf | 703 kB | Shaun Ewing | Sept 26, 1939 00:00 |
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US-2173923-A // Cathode ray tube // Teal Gordon K. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 703 kB | Shaun Ewing | Sept 26, 1939 00:00 | US-2173923-A // Cathode ray tube // Teal Gordon K. // Bell Telephone Labor Inc | ||||
| PDF File 2173858.pdf | 1.28 MB | Shaun Ewing | Sept 26, 1939 00:00 |
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US-2173858-A // Radio system // Pierce Norman J. ; Polkinghorn Frank A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.28 MB | Shaun Ewing | Sept 26, 1939 00:00 | US-2173858-A // Radio system // Pierce Norman J. ; Polkinghorn Frank A. // Bell Telephone Labor Inc | ||||
| PDF File 2173816.pdf | 1.06 MB | Shaun Ewing | Sept 26, 1939 00:00 |
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US-2173816-A // Transmission system // Bjornson Bjorn G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.06 MB | Shaun Ewing | Sept 26, 1939 00:00 | US-2173816-A // Transmission system // Bjornson Bjorn G. // Bell Telephone Labor Inc | ||||
| PDF File 2173679.pdf | 807 kB | Shaun Ewing | Sept 19, 1939 00:00 |
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US-2173679-A // Electron discharge device // Clark James E. ; Ronci Victor L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 807 kB | Shaun Ewing | Sept 19, 1939 00:00 | US-2173679-A // Electron discharge device // Clark James E. ; Ronci Victor L. // Bell Telephone Labor Inc | ||||
| PDF File 2173675.pdf | 1.63 MB | Shaun Ewing | Sept 19, 1939 00:00 |
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US-2173675-A // Telephone system // Bowne Langford J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.63 MB | Shaun Ewing | Sept 19, 1939 00:00 | US-2173675-A // Telephone system // Bowne Langford J. // Bell Telephone Labor Inc | ||||
| PDF File 2173589.pdf | 1.84 MB | Shaun Ewing | Sept 19, 1939 00:00 |
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US-2173589-A // Piezoelectric apparatus // Mason Warren P. ; Sykes Roger A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.84 MB | Shaun Ewing | Sept 19, 1939 00:00 | US-2173589-A // Piezoelectric apparatus // Mason Warren P. ; Sykes Roger A. // Bell Telephone Labor Inc | ||||
| PDF File 2173551.pdf | 2.55 MB | Shaun Ewing | Sept 19, 1939 00:00 |
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US-2173551-A // Communication system // Fitch Karl E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.55 MB | Shaun Ewing | Sept 19, 1939 00:00 | US-2173551-A // Communication system // Fitch Karl E. // Bell Telephone Labor Inc | ||||
| PDF File 2173548.pdf | 1.22 MB | Shaun Ewing | Sept 19, 1939 00:00 |
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US-2173548-A // Selector switch // Carpenter Warren W. ; Mallina Rudolph F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.22 MB | Shaun Ewing | Sept 19, 1939 00:00 | US-2173548-A // Selector switch // Carpenter Warren W. ; Mallina Rudolph F. // Bell Telephone Labor Inc | ||||
| PDF File 2173481.pdf | 988 kB | Shaun Ewing | Sept 19, 1939 00:00 |
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US-2173481-A // Manufacture of electroacoustic devices // Kalin Walter // Bell Telephone Labor Inc | |||
| Version 1 (current) | 988 kB | Shaun Ewing | Sept 19, 1939 00:00 | US-2173481-A // Manufacture of electroacoustic devices // Kalin Walter // Bell Telephone Labor Inc |
