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 1913427.pdf | 815 kB | Shaun Ewing | Jun 13, 1933 00:00 |
|
US-1913427-A // Electric discharge device // Bond Donald S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 815 kB | Shaun Ewing | Jun 13, 1933 00:00 | US-1913427-A // Electric discharge device // Bond Donald S. // Bell Telephone Labor Inc | ||||
| PDF File 1909438.pdf | 815 kB | Shaun Ewing | May 16, 1933 00:00 |
|
US-1909438-A // Signaling system // Wadsworth Paul W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 815 kB | Shaun Ewing | May 16, 1933 00:00 | US-1909438-A // Signaling system // Wadsworth Paul W. // Bell Telephone Labor Inc | ||||
| PDF File 1844108.pdf | 814 kB | Shaun Ewing | Feb 09, 1932 00:00 |
|
US-1844108-A // Method of manufacturing acoustic impedance elements // Smythe Edwin H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 814 kB | Shaun Ewing | Feb 09, 1932 00:00 | US-1844108-A // Method of manufacturing acoustic impedance elements // Smythe Edwin H. // Bell Telephone Labor Inc | ||||
| PDF File 1881483.pdf | 813 kB | Shaun Ewing | Oct 11, 1932 00:00 |
|
US-1881483-A // Radio transmission systems // Gillett Glenn D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 813 kB | Shaun Ewing | Oct 11, 1932 00:00 | US-1881483-A // Radio transmission systems // Gillett Glenn D. // Bell Telephone Labor Inc | ||||
| PDF File 2207841.pdf | 813 kB | Shaun Ewing | Jul 16, 1940 00:00 |
|
US-2207841-A // Electric discharge device // Weinhart Howard W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 813 kB | Shaun Ewing | Jul 16, 1940 00:00 | US-2207841-A // Electric discharge device // Weinhart Howard W. // Bell Telephone Labor Inc | ||||
| PDF File 2210739.pdf | 812 kB | Shaun Ewing | Aug 06, 1940 00:00 |
|
US-2210739-A // Through supervision system // Ulrich Horace W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 812 kB | Shaun Ewing | Aug 06, 1940 00:00 | US-2210739-A // Through supervision system // Ulrich Horace W. // Bell Telephone Labor Inc | ||||
| PDF File 1912146.pdf | 812 kB | Shaun Ewing | May 30, 1933 00:00 |
|
US-1912146-A // Glow discharge device // Johnson John B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 812 kB | Shaun Ewing | May 30, 1933 00:00 | US-1912146-A // Glow discharge device // Johnson John B. // Bell Telephone Labor Inc | ||||
| PDF File 2098968.pdf | 811 kB | Shaun Ewing | Nov 16, 1937 00:00 |
|
US-2098968-A // Transmission regulation // Mallinckrodt Charles O. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 811 kB | Shaun Ewing | Nov 16, 1937 00:00 | US-2098968-A // Transmission regulation // Mallinckrodt Charles O. // Bell Telephone Labor Inc | ||||
| PDF File 1917072.pdf | 811 kB | Shaun Ewing | Jul 04, 1933 00:00 |
|
US-1917072-A // Acoustic device // Smythe Edwin H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 811 kB | Shaun Ewing | Jul 04, 1933 00:00 | US-1917072-A // Acoustic device // Smythe Edwin H. // Bell Telephone Labor Inc | ||||
| PDF File 2048500.pdf | 810 kB | Shaun Ewing | Jul 21, 1936 00:00 |
|
US-2048500-A // Sound recording // Glunt Omer M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 810 kB | Shaun Ewing | Jul 21, 1936 00:00 | US-2048500-A // Sound recording // Glunt Omer M. // Bell Telephone Labor Inc | ||||
| PDF File 1795640.pdf | 809 kB | Shaun Ewing | Mar 10, 1931 00:00 |
|
US-1795640-A // Telephone-exchange system // Collis Raymond E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 809 kB | Shaun Ewing | Mar 10, 1931 00:00 | US-1795640-A // Telephone-exchange system // Collis Raymond E. // Bell Telephone Labor Inc | ||||
| PDF File 1795499.pdf | 809 kB | Shaun Ewing | Mar 10, 1931 00:00 |
|
US-1795499-A // Magnetic device // Miller Daniel D. ; Pratt Edward J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 809 kB | Shaun Ewing | Mar 10, 1931 00:00 | US-1795499-A // Magnetic device // Miller Daniel D. ; Pratt Edward J. // Bell Telephone Labor Inc | ||||
| PDF File 1932253.pdf | 809 kB | Shaun Ewing | Oct 24, 1933 00:00 |
|
US-1932253-A // Television system // Ives Herbert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 809 kB | Shaun Ewing | Oct 24, 1933 00:00 | US-1932253-A // Television system // Ives Herbert E. // Bell Telephone Labor Inc | ||||
| PDF File 1958626.pdf | 809 kB | Shaun Ewing | May 15, 1934 00:00 |
|
US-1958626-A // Reeling device // Krantz Hubert K. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 809 kB | Shaun Ewing | May 15, 1934 00:00 | US-1958626-A // Reeling device // Krantz Hubert K. // Bell Telephone Labor Inc | ||||
| PDF File 1921469.pdf | 808 kB | Shaun Ewing | Aug 08, 1933 00:00 |
|
US-1921469-A // Film editing machine // Kuhn John J. ; Terry Roy V. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 808 kB | Shaun Ewing | Aug 08, 1933 00:00 | US-1921469-A // Film editing machine // Kuhn John J. ; Terry Roy V. // Bell Telephone Labor Inc | ||||
| PDF File 2174006.pdf | 807 kB | Shaun Ewing | Sept 26, 1939 00:00 |
|
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 2140145.pdf | 807 kB | Shaun Ewing | Dec 13, 1938 00:00 |
|
US-2140145-A // Antenna system // Sterba Ernest J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 807 kB | Shaun Ewing | Dec 13, 1938 00:00 | US-2140145-A // Antenna system // Sterba Ernest J. // Bell Telephone Labor Inc | ||||
| PDF File 2173679.pdf | 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 | |||
| 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 2141387.pdf | 807 kB | Shaun Ewing | Dec 27, 1938 00:00 |
|
US-2141387-A // Electron discharge device // Hale Douglas A. S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 807 kB | Shaun Ewing | Dec 27, 1938 00:00 | US-2141387-A // Electron discharge device // Hale Douglas A. S. // Bell Telephone Labor Inc | ||||
| PDF File 2210636.pdf | 805 kB | Shaun Ewing | Aug 06, 1940 00:00 |
|
US-2210636-A // Guided wave transmission // Schelkunoff Sergei A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 805 kB | Shaun Ewing | Aug 06, 1940 00:00 | US-2210636-A // Guided wave transmission // Schelkunoff Sergei A. // Bell Telephone Labor Inc |
