Unable to load page tree. It seems that you do not have permission to view the root page.
Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2227487.pdf | 411 kB | Shaun Ewing | Jan 07, 1941 00:00 |
|
US-2227487-A // Concentric line coupling // Chaffee Joseph G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 411 kB | Shaun Ewing | Jan 07, 1941 00:00 | US-2227487-A // Concentric line coupling // Chaffee Joseph G. // Bell Telephone Labor Inc | ||||
| PDF File 2227488.pdf | 2.05 MB | Shaun Ewing | Jan 07, 1941 00:00 |
|
US-2227488-A // Telephone system // Collis Raymond E. ; Dehn Joseph W. ; Hersey Ralph E. ; Newsom James B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.05 MB | Shaun Ewing | Jan 07, 1941 00:00 | US-2227488-A // Telephone system // Collis Raymond E. ; Dehn Joseph W. ; Hersey Ralph E. ; Newsom James B. // Bell Telephone Labor Inc | ||||
| PDF File 2227580.pdf | 905 kB | Shaun Ewing | Jan 07, 1941 00:00 |
|
US-2227580-A // Acoustic device // Harry William R. ; Marshall Robert N. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 905 kB | Shaun Ewing | Jan 07, 1941 00:00 | US-2227580-A // Acoustic device // Harry William R. ; Marshall Robert N. // Bell Telephone Labor Inc | ||||
| PDF File 2227904.pdf | 1.94 MB | Shaun Ewing | Jan 07, 1941 00:00 |
|
US-2227904-A // Piezoelectric crystal apparatus // Hight Stuart C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.94 MB | Shaun Ewing | Jan 07, 1941 00:00 | US-2227904-A // Piezoelectric crystal apparatus // Hight Stuart C. // Bell Telephone Labor Inc | ||||
| PDF File 2227909.pdf | 377 kB | Shaun Ewing | Jan 07, 1941 00:00 |
|
US-2227909-A // Electron discharge apparatus // Ohl Russell S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 377 kB | Shaun Ewing | Jan 07, 1941 00:00 | US-2227909-A // Electron discharge apparatus // Ohl Russell S. // Bell Telephone Labor Inc | ||||
| PDF File 2228071.pdf | 1.39 MB | Shaun Ewing | Jan 07, 1941 00:00 |
|
US-2228071-A // Volume control circuits // Bjornson Bjorn G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.39 MB | Shaun Ewing | Jan 07, 1941 00:00 | US-2228071-A // Volume control circuits // Bjornson Bjorn G. // Bell Telephone Labor Inc | ||||
| PDF File 2228113.pdf | 502 kB | Shaun Ewing | Jan 07, 1941 00:00 |
|
US-2228113-A // Selective system // Hersey Ralph E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 502 kB | Shaun Ewing | Jan 07, 1941 00:00 | US-2228113-A // Selective system // Hersey Ralph E. // Bell Telephone Labor Inc | ||||
| PDF File 2228266.pdf | 463 kB | Shaun Ewing | Jan 14, 1941 00:00 |
|
US-2228266-A // Signal translating apparatus // Gray Frank // Bell Telephone Labor Inc | |||
| Version 1 (current) | 463 kB | Shaun Ewing | Jan 14, 1941 00:00 | US-2228266-A // Signal translating apparatus // Gray Frank // Bell Telephone Labor Inc | ||||
| PDF File 2228279.pdf | 11.95 MB | Shaun Ewing | Jan 14, 1941 00:00 |
|
US-2228279-A // Teletypewriter exchange system // Lucek Charles W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 11.95 MB | Shaun Ewing | Jan 14, 1941 00:00 | US-2228279-A // Teletypewriter exchange system // Lucek Charles W. // Bell Telephone Labor Inc | ||||
| PDF File 2228285.pdf | 543 kB | Shaun Ewing | Jan 14, 1941 00:00 |
|
US-2228285-A // Rectifier circuit // Penick Dixon B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 543 kB | Shaun Ewing | Jan 14, 1941 00:00 | US-2228285-A // Rectifier circuit // Penick Dixon B. // Bell Telephone Labor Inc | ||||
| PDF File 2228341.pdf | 402 kB | Shaun Ewing | Jan 14, 1941 00:00 |
|
US-2228341-A // Wiping die // Cawthon Samuel C. ; Morsing William // Bell Telephone Labor Inc ; Western Electric Co | |||
| Version 1 (current) | 402 kB | Shaun Ewing | Jan 14, 1941 00:00 | US-2228341-A // Wiping die // Cawthon Samuel C. ; Morsing William // Bell Telephone Labor Inc ; Western Electric Co | ||||
| PDF File 2228866.pdf | 1.32 MB | Shaun Ewing | Jan 14, 1941 00:00 |
|
US-2228866-A // Volume control circuits // Bjornson Bjorn G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.32 MB | Shaun Ewing | Jan 14, 1941 00:00 | US-2228866-A // Volume control circuits // Bjornson Bjorn G. // Bell Telephone Labor Inc | ||||
| PDF File 2228890.pdf | 4.02 MB | Shaun Ewing | Jan 14, 1941 00:00 |
|
US-2228890-A // Telegraph exchange system // Singer Fred J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 4.02 MB | Shaun Ewing | Jan 14, 1941 00:00 | US-2228890-A // Telegraph exchange system // Singer Fred J. // Bell Telephone Labor Inc | ||||
| PDF File 2229089.pdf | 593 kB | Shaun Ewing | Jan 21, 1941 00:00 |
|
US-2229089-A // Switching of spare channel // Kinsburg Boris J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 593 kB | Shaun Ewing | Jan 21, 1941 00:00 | US-2229089-A // Switching of spare channel // Kinsburg Boris J. // Bell Telephone Labor Inc | ||||
| PDF File 2229090.pdf | 720 kB | Shaun Ewing | Jan 21, 1941 00:00 |
|
US-2229090-A // Switching of spare repeater sections // Kinzer John P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 720 kB | Shaun Ewing | Jan 21, 1941 00:00 | US-2229090-A // Switching of spare repeater sections // Kinzer John P. // Bell Telephone Labor Inc | ||||
| PDF File 2229108.pdf | 906 kB | Shaun Ewing | Jan 21, 1941 00:00 |
|
US-2229108-A // Switching of spare repeater sections // Maggio John B. ; Tassel Earl K. Van ; Wilson Ira G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 906 kB | Shaun Ewing | Jan 21, 1941 00:00 | US-2229108-A // Switching of spare repeater sections // Maggio John B. ; Tassel Earl K. Van ; Wilson Ira G. // Bell Telephone Labor Inc | ||||
| PDF File 2229158.pdf | 553 kB | Shaun Ewing | Jan 21, 1941 00:00 |
|
US-2229158-A // Switching of spare repeater sections // Wilson Ira G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 553 kB | Shaun Ewing | Jan 21, 1941 00:00 | US-2229158-A // Switching of spare repeater sections // Wilson Ira G. // Bell Telephone Labor Inc | ||||
| PDF File 2230081.pdf | 1.42 MB | Shaun Ewing | Jan 28, 1941 00:00 |
|
US-2230081-A // Printing telegraph counting apparatus // Mccann Thomas A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.42 MB | Shaun Ewing | Jan 28, 1941 00:00 | US-2230081-A // Printing telegraph counting apparatus // Mccann Thomas A. // Bell Telephone Labor Inc | ||||
| PDF File 2230104.pdf | 779 kB | Shaun Ewing | Jan 28, 1941 00:00 |
|
US-2230104-A // Acoustic device // Bostwick Lee G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 779 kB | Shaun Ewing | Jan 28, 1941 00:00 | US-2230104-A // Acoustic device // Bostwick Lee G. // Bell Telephone Labor Inc | ||||
| PDF File 2230256.pdf | 1.08 MB | Shaun Ewing | Feb 04, 1941 00:00 |
|
US-2230256-A // Wave amplifying system // Meyers Stanley T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.08 MB | Shaun Ewing | Feb 04, 1941 00:00 | US-2230256-A // Wave amplifying system // Meyers Stanley T. // Bell Telephone Labor Inc |
