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 2178653.pdf | 556 kB | Shaun Ewing | Nov 07, 1939 00:00 |
|
US-2178653-A // Building-out unit // Slade Benjamin // Bell Telephone Labor Inc | |||
| Version 1 (current) | 556 kB | Shaun Ewing | Nov 07, 1939 00:00 | US-2178653-A // Building-out unit // Slade Benjamin // Bell Telephone Labor Inc | ||||
| PDF File 2040291.pdf | 556 kB | Shaun Ewing | May 12, 1936 00:00 |
|
US-2040291-A // Telephone system // Bonomi Felix A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 556 kB | Shaun Ewing | May 12, 1936 00:00 | US-2040291-A // Telephone system // Bonomi Felix A. // Bell Telephone Labor Inc | ||||
| PDF File 2099111.pdf | 556 kB | Shaun Ewing | Nov 16, 1937 00:00 |
|
US-2099111-A // Gaseous discharge device // Hefele John R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 556 kB | Shaun Ewing | Nov 16, 1937 00:00 | US-2099111-A // Gaseous discharge device // Hefele John R. // Bell Telephone Labor Inc | ||||
| PDF File 1881685.pdf | 555 kB | Shaun Ewing | Oct 11, 1932 00:00 |
|
US-1881685-A // Phase shifting device // Knoop William A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 555 kB | Shaun Ewing | Oct 11, 1932 00:00 | US-1881685-A // Phase shifting device // Knoop William A. // Bell Telephone Labor Inc | ||||
| PDF File 1816913.pdf | 555 kB | Shaun Ewing | Aug 04, 1931 00:00 |
|
US-1816913-A // Protective circuit for vacuum tubes // Schelleng John C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 555 kB | Shaun Ewing | Aug 04, 1931 00:00 | US-1816913-A // Protective circuit for vacuum tubes // Schelleng John C. // Bell Telephone Labor Inc | ||||
| PDF File 1930269.pdf | 555 kB | Shaun Ewing | Oct 10, 1933 00:00 |
|
US-1930269-A // Inductance device // Greenidge Ralph M. C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 555 kB | Shaun Ewing | Oct 10, 1933 00:00 | US-1930269-A // Inductance device // Greenidge Ralph M. C. // Bell Telephone Labor Inc | ||||
| PDF File 1952577.pdf | 554 kB | Shaun Ewing | Mar 27, 1934 00:00 |
|
US-1952577-A // Mechanical amplifier // Bennett Arthur F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 554 kB | Shaun Ewing | Mar 27, 1934 00:00 | US-1952577-A // Mechanical amplifier // Bennett Arthur F. // Bell Telephone Labor Inc | ||||
| PDF File 2049179.pdf | 554 kB | Shaun Ewing | Jul 28, 1936 00:00 |
|
US-2049179-A // Frequency generator system // Stallard Burrell // Bell Telephone Labor Inc | |||
| Version 1 (current) | 554 kB | Shaun Ewing | Jul 28, 1936 00:00 | US-2049179-A // Frequency generator system // Stallard Burrell // Bell Telephone Labor Inc | ||||
| PDF File 2153768.pdf | 554 kB | Shaun Ewing | Apr 11, 1939 00:00 |
|
US-2153768-A // Antenna system // Morrison John F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 554 kB | Shaun Ewing | Apr 11, 1939 00:00 | US-2153768-A // Antenna system // Morrison John F. // Bell Telephone Labor Inc | ||||
| PDF File 2024576.pdf | 554 kB | Shaun Ewing | Dec 17, 1935 00:00 |
|
US-2024576-A // Electrical wave filter // Grossman Alexander J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 554 kB | Shaun Ewing | Dec 17, 1935 00:00 | US-2024576-A // Electrical wave filter // Grossman Alexander J. // Bell Telephone Labor Inc | ||||
| PDF File 2079694.pdf | 553 kB | Shaun Ewing | May 11, 1937 00:00 |
|
US-2079694-A // Acoustic amplifier // Lovell Clarence A. ; Wegel Raymond L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 553 kB | Shaun Ewing | May 11, 1937 00:00 | US-2079694-A // Acoustic amplifier // Lovell Clarence A. ; Wegel Raymond L. // Bell Telephone Labor Inc | ||||
| PDF File 1961393.pdf | 553 kB | Shaun Ewing | Jun 05, 1934 00:00 |
|
US-1961393-A // Electron discharge device // Ronci Victor L. ; Ericsson Harry W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 553 kB | Shaun Ewing | Jun 05, 1934 00:00 | US-1961393-A // Electron discharge device // Ronci Victor L. ; Ericsson Harry W. // Bell Telephone Labor Inc | ||||
| PDF File 1880714.pdf | 553 kB | Shaun Ewing | Oct 04, 1932 00:00 |
|
US-1880714-A // Gas-filled tube circuits // Bjornson Bjorn G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 553 kB | Shaun Ewing | Oct 04, 1932 00:00 | US-1880714-A // Gas-filled tube circuits // Bjornson Bjorn G. // Bell Telephone Labor Inc | ||||
| PDF File 1962333.pdf | 553 kB | Shaun Ewing | Jun 12, 1934 00:00 |
|
US-1962333-A // Speed regulator system // Trucksess David E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 553 kB | Shaun Ewing | Jun 12, 1934 00:00 | US-1962333-A // Speed regulator system // Trucksess David E. // Bell Telephone Labor Inc | ||||
| PDF File 2116996.pdf | 553 kB | Shaun Ewing | May 10, 1938 00:00 |
|
US-2116996-A // Variable tuned circuits // Crawford Arthur B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 553 kB | Shaun Ewing | May 10, 1938 00:00 | US-2116996-A // Variable tuned circuits // Crawford Arthur B. // Bell Telephone Labor Inc | ||||
| PDF File 1970316.pdf | 552 kB | Shaun Ewing | Aug 14, 1934 00:00 |
|
US-1970316-A // Vacuum tube circuits // Kalb Robert M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 552 kB | Shaun Ewing | Aug 14, 1934 00:00 | US-1970316-A // Vacuum tube circuits // Kalb Robert M. // Bell Telephone Labor Inc | ||||
| PDF File 2063323.pdf | 552 kB | Shaun Ewing | Dec 08, 1936 00:00 |
|
US-2063323-A // Telephone message recorder // Mallina Rudolph F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 552 kB | Shaun Ewing | Dec 08, 1936 00:00 | US-2063323-A // Telephone message recorder // Mallina Rudolph F. // Bell Telephone Labor Inc | ||||
| PDF File 1923686.pdf | 552 kB | Shaun Ewing | Aug 22, 1933 00:00 |
|
US-1923686-A // Electron discharge device // Pidgeon Howard A. ; Mcnally James O. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 552 kB | Shaun Ewing | Aug 22, 1933 00:00 | US-1923686-A // Electron discharge device // Pidgeon Howard A. ; Mcnally James O. // Bell Telephone Labor Inc | ||||
| PDF File 2069810.pdf | 552 kB | Shaun Ewing | Feb 09, 1937 00:00 |
|
US-2069810-A // Sound recording and reproducing system // Bond Donald S. // Leila B Arnold ; Bell Telephone Labor Inc | |||
| Version 1 (current) | 552 kB | Shaun Ewing | Feb 09, 1937 00:00 | US-2069810-A // Sound recording and reproducing system // Bond Donald S. // Leila B Arnold ; Bell Telephone Labor Inc | ||||
| PDF File 2091549.pdf | 551 kB | Shaun Ewing | Aug 31, 1937 00:00 |
|
US-2091549-A // Cabinet // Kelso Hugh D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 551 kB | Shaun Ewing | Aug 31, 1937 00:00 | US-2091549-A // Cabinet // Kelso Hugh D. // Bell Telephone Labor Inc |
