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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2148532.pdf | 479 kB | Shaun Ewing | Feb 28, 1939 00:00 |
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US-2148532-A // Radio repeater // Chaffee Joseph G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 479 kB | Shaun Ewing | Feb 28, 1939 00:00 | US-2148532-A // Radio repeater // Chaffee Joseph G. // Bell Telephone Labor Inc | ||||
| PDF File 2148538.pdf | 1.01 MB | Shaun Ewing | Feb 28, 1939 00:00 |
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US-2148538-A // Electron discharge device // Depew Charles ; Ronci Victor L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.01 MB | Shaun Ewing | Feb 28, 1939 00:00 | US-2148538-A // Electron discharge device // Depew Charles ; Ronci Victor L. // Bell Telephone Labor Inc | ||||
| PDF File 2148542.pdf | 298 kB | Shaun Ewing | Feb 28, 1939 00:00 |
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US-2148542-A // Fuse // Dietz Alfred E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 298 kB | Shaun Ewing | Feb 28, 1939 00:00 | US-2148542-A // Fuse // Dietz Alfred E. // Bell Telephone Labor Inc | ||||
| PDF File 2148560.pdf | 247 kB | Shaun Ewing | Feb 28, 1939 00:00 |
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US-2148560-A // Signaling system // Johnston Donald F. ; Shiel John B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 247 kB | Shaun Ewing | Feb 28, 1939 00:00 | US-2148560-A // Signaling system // Johnston Donald F. ; Shiel John B. // Bell Telephone Labor Inc | ||||
| PDF File 2148562.pdf | 291 kB | Shaun Ewing | Feb 28, 1939 00:00 |
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US-2148562-A // Alloys // Kingsbury Edwin F. ; Reeve Howard T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 291 kB | Shaun Ewing | Feb 28, 1939 00:00 | US-2148562-A // Alloys // Kingsbury Edwin F. ; Reeve Howard T. // Bell Telephone Labor Inc | ||||
| PDF File 2148578.pdf | 580 kB | Shaun Ewing | Feb 28, 1939 00:00 |
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US-2148578-A // Signaling system // Pullis George A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 580 kB | Shaun Ewing | Feb 28, 1939 00:00 | US-2148578-A // Signaling system // Pullis George A. // Bell Telephone Labor Inc | ||||
| PDF File 2148598.pdf | 409 kB | Shaun Ewing | Feb 28, 1939 00:00 |
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US-2148598-A // Relay // Zupa Frank A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 409 kB | Shaun Ewing | Feb 28, 1939 00:00 | US-2148598-A // Relay // Zupa Frank A. // Bell Telephone Labor Inc | ||||
| PDF File 2149328.pdf | 666 kB | Shaun Ewing | Mar 07, 1939 00:00 |
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US-2149328-A // Space discharge type of apparatus // Aiken Charles B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 666 kB | Shaun Ewing | Mar 07, 1939 00:00 | US-2149328-A // Space discharge type of apparatus // Aiken Charles B. // Bell Telephone Labor Inc | ||||
| PDF File 2149336.pdf | 1.06 MB | Shaun Ewing | Mar 07, 1939 00:00 |
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US-2149336-A // Inductive device // Darnell Paul S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.06 MB | Shaun Ewing | Mar 07, 1939 00:00 | US-2149336-A // Inductive device // Darnell Paul S. // Bell Telephone Labor Inc | ||||
| PDF File 2149341.pdf | 201 kB | Shaun Ewing | Mar 07, 1939 00:00 |
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US-2149341-A // Earphone support // Harrison Henry C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 201 kB | Shaun Ewing | Mar 07, 1939 00:00 | US-2149341-A // Earphone support // Harrison Henry C. // Bell Telephone Labor Inc | ||||
| PDF File 2149343.pdf | 2.36 MB | Shaun Ewing | Mar 07, 1939 00:00 |
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US-2149343-A // Signaling system // Hubbard Francis A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.36 MB | Shaun Ewing | Mar 07, 1939 00:00 | US-2149343-A // Signaling system // Hubbard Francis A. // Bell Telephone Labor Inc | ||||
| PDF File 2149355.pdf | 644 kB | Shaun Ewing | Mar 07, 1939 00:00 |
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US-2149355-A // Selective system // Lundstrom Alexis A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 644 kB | Shaun Ewing | Mar 07, 1939 00:00 | US-2149355-A // Selective system // Lundstrom Alexis A. // Bell Telephone Labor Inc | ||||
| PDF File 2149356.pdf | 1.13 MB | Shaun Ewing | Mar 07, 1939 00:00 |
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US-2149356-A // Wave transmission network // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.13 MB | Shaun Ewing | Mar 07, 1939 00:00 | US-2149356-A // Wave transmission network // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2149372.pdf | 445 kB | Shaun Ewing | Mar 07, 1939 00:00 |
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US-2149372-A // Voltage limiter // Vaughan Henry E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 445 kB | Shaun Ewing | Mar 07, 1939 00:00 | US-2149372-A // Voltage limiter // Vaughan Henry E. // Bell Telephone Labor Inc | ||||
| PDF File 2150159.pdf | 1008 kB | Shaun Ewing | Mar 14, 1939 00:00 |
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US-2150159-A // Electro-optical system // Gray Frank // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1008 kB | Shaun Ewing | Mar 14, 1939 00:00 | US-2150159-A // Electro-optical system // Gray Frank // Bell Telephone Labor Inc | ||||
| PDF File 2150160.pdf | 1.10 MB | Shaun Ewing | Mar 14, 1939 00:00 |
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US-2150160-A // Electro-optical system // Gray Frank // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.10 MB | Shaun Ewing | Mar 14, 1939 00:00 | US-2150160-A // Electro-optical system // Gray Frank // Bell Telephone Labor Inc | ||||
| PDF File 2150168.pdf | 487 kB | Shaun Ewing | Mar 14, 1939 00:00 |
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US-2150168-A // Electro-optical system // Ives Herbert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 487 kB | Shaun Ewing | Mar 14, 1939 00:00 | US-2150168-A // Electro-optical system // Ives Herbert E. // Bell Telephone Labor Inc | ||||
| PDF File 2150356.pdf | 664 kB | Shaun Ewing | Mar 14, 1939 00:00 |
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US-2150356-A // Glow discharge lamp // Bleicher Otto C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 664 kB | Shaun Ewing | Mar 14, 1939 00:00 | US-2150356-A // Glow discharge lamp // Bleicher Otto C. // Bell Telephone Labor Inc | ||||
| PDF File 2150364.pdf | 1.08 MB | Shaun Ewing | Mar 14, 1939 00:00 |
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US-2150364-A // Signaling system // Dudley Homer W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.08 MB | Shaun Ewing | Mar 14, 1939 00:00 | US-2150364-A // Signaling system // Dudley Homer W. // Bell Telephone Labor Inc | ||||
| PDF File 2150386.pdf | 424 kB | Shaun Ewing | Mar 14, 1939 00:00 |
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US-2150386-A // Harmonic producer // Manley Jack M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 424 kB | Shaun Ewing | Mar 14, 1939 00:00 | US-2150386-A // Harmonic producer // Manley Jack M. // Bell Telephone Labor Inc |
