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 1930255.pdf | 3.81 MB | Shaun Ewing | Oct 10, 1933 00:00 |
|
US-1930255-A // Telephone system // Smith Gerard V. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.81 MB | Shaun Ewing | Oct 10, 1933 00:00 | US-1930255-A // Telephone system // Smith Gerard V. // Bell Telephone Labor Inc | ||||
| PDF File 1929925.pdf | 386 kB | Shaun Ewing | Oct 10, 1933 00:00 |
|
US-1929925-A // Multiple terminal bank // Kuhn John J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 386 kB | Shaun Ewing | Oct 10, 1933 00:00 | US-1929925-A // Multiple terminal bank // Kuhn John J. // Bell Telephone Labor Inc | ||||
| PDF File 1929446.pdf | 257 kB | Shaun Ewing | Oct 10, 1933 00:00 |
|
US-1929446-A // Resistance device // Ogg Robert A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 257 kB | Shaun Ewing | Oct 10, 1933 00:00 | US-1929446-A // Resistance device // Ogg Robert A. // Bell Telephone Labor Inc | ||||
| PDF File 1927400.pdf | 467 kB | Shaun Ewing | Sept 19, 1933 00:00 |
|
US-1927400-A // Method of applying and vulcanizing an insulating compound // Gray Alvin N. ; Kemp Archie R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 467 kB | Shaun Ewing | Sept 19, 1933 00:00 | US-1927400-A // Method of applying and vulcanizing an insulating compound // Gray Alvin N. ; Kemp Archie R. // Bell Telephone Labor Inc | ||||
| PDF File 1927099.pdf | 332 kB | Shaun Ewing | Sept 19, 1933 00:00 |
|
US-1927099-A // Vacuum tube circuits // Shower Edmund G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 332 kB | Shaun Ewing | Sept 19, 1933 00:00 | US-1927099-A // Vacuum tube circuits // Shower Edmund G. // Bell Telephone Labor Inc | ||||
| PDF File 1927084.pdf | 665 kB | Shaun Ewing | Sept 19, 1933 00:00 |
|
US-1927084-A // Support for filament assemblies // Depew Charles // Bell Telephone Labor Inc | |||
| Version 1 (current) | 665 kB | Shaun Ewing | Sept 19, 1933 00:00 | US-1927084-A // Support for filament assemblies // Depew Charles // Bell Telephone Labor Inc | ||||
| PDF File 1927082.pdf | 272 kB | Shaun Ewing | Sept 19, 1933 00:00 |
|
US-1927082-A // Amplifier // Corbin Joseph E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 272 kB | Shaun Ewing | Sept 19, 1933 00:00 | US-1927082-A // Amplifier // Corbin Joseph E. // Bell Telephone Labor Inc | ||||
| PDF File 1927070.pdf | 537 kB | Shaun Ewing | Sept 19, 1933 00:00 |
|
US-1927070-A // Distortion correction in wave transmission systems // Peterson Eugene // Bell Telephone Labor Inc | |||
| Version 1 (current) | 537 kB | Shaun Ewing | Sept 19, 1933 00:00 | US-1927070-A // Distortion correction in wave transmission systems // Peterson Eugene // Bell Telephone Labor Inc | ||||
| PDF File 1926899.pdf | 382 kB | Shaun Ewing | Sept 12, 1933 00:00 |
|
US-1926899-A // Submarine communication cable // Gilbert John J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 382 kB | Shaun Ewing | Sept 12, 1933 00:00 | US-1926899-A // Submarine communication cable // Gilbert John J. // Bell Telephone Labor Inc | ||||
| PDF File 1926894.pdf | 2.91 MB | Shaun Ewing | Sept 12, 1933 00:00 |
|
US-1926894-A // Selector testing system // Dehn Joseph W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.91 MB | Shaun Ewing | Sept 12, 1933 00:00 | US-1926894-A // Selector testing system // Dehn Joseph W. // Bell Telephone Labor Inc | ||||
| PDF File 1926889.pdf | 410 kB | Shaun Ewing | Sept 12, 1933 00:00 |
|
US-1926889-A // Glow discharge device // Weinhart Howard W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 410 kB | Shaun Ewing | Sept 12, 1933 00:00 | US-1926889-A // Glow discharge device // Weinhart Howard W. // Bell Telephone Labor Inc | ||||
| PDF File 1926880.pdf | 1.82 MB | Shaun Ewing | Sept 12, 1933 00:00 |
|
US-1926880-A // Transmission control in two-way signaling systems // Norwine Andrew C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.82 MB | Shaun Ewing | Sept 12, 1933 00:00 | US-1926880-A // Transmission control in two-way signaling systems // Norwine Andrew C. // Bell Telephone Labor Inc | ||||
| PDF File 1926877.pdf | 199 kB | Shaun Ewing | Sept 12, 1933 00:00 |
|
US-1926877-A // Transmission network // Marrison Warren A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 199 kB | Shaun Ewing | Sept 12, 1933 00:00 | US-1926877-A // Transmission network // Marrison Warren A. // Bell Telephone Labor Inc | ||||
| PDF File 1926876.pdf | 652 kB | Shaun Ewing | Sept 12, 1933 00:00 |
|
US-1926876-A // Time announcing machine // Mallina Rudolph F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 652 kB | Shaun Ewing | Sept 12, 1933 00:00 | US-1926876-A // Time announcing machine // Mallina Rudolph F. // Bell Telephone Labor Inc | ||||
| PDF File 1925696.pdf | 988 kB | Shaun Ewing | Sept 05, 1933 00:00 |
|
US-1925696-A // Telephone system // Irvine Frank S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 988 kB | Shaun Ewing | Sept 05, 1933 00:00 | US-1925696-A // Telephone system // Irvine Frank S. // Bell Telephone Labor Inc | ||||
| PDF File 1925693.pdf | 455 kB | Shaun Ewing | Sept 05, 1933 00:00 |
|
US-1925693-A // Glow discharge lamp // Gray Frank // Bell Telephone Labor Inc | |||
| Version 1 (current) | 455 kB | Shaun Ewing | Sept 05, 1933 00:00 | US-1925693-A // Glow discharge lamp // Gray Frank // Bell Telephone Labor Inc | ||||
| PDF File 1925690.pdf | 425 kB | Shaun Ewing | Sept 05, 1933 00:00 |
|
US-1925690-A // Sound picture system // Elmer Lloyd A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 425 kB | Shaun Ewing | Sept 05, 1933 00:00 | US-1925690-A // Sound picture system // Elmer Lloyd A. // Bell Telephone Labor Inc | ||||
| PDF File 1925659.pdf | 499 kB | Shaun Ewing | Sept 05, 1933 00:00 |
|
US-1925659-A // Acoustic device // Giles Leonard W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 499 kB | Shaun Ewing | Sept 05, 1933 00:00 | US-1925659-A // Acoustic device // Giles Leonard W. // Bell Telephone Labor Inc | ||||
| PDF File 1924836.pdf | 311 kB | Shaun Ewing | Aug 29, 1933 00:00 |
|
US-1924836-A // Amplifier // Cousins Van M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 311 kB | Shaun Ewing | Aug 29, 1933 00:00 | US-1924836-A // Amplifier // Cousins Van M. // Bell Telephone Labor Inc | ||||
| PDF File 1924115.pdf | 703 kB | Shaun Ewing | Aug 29, 1933 00:00 |
|
US-1924115-A // Protective means for electrical systems // Ferrell Enoch B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 703 kB | Shaun Ewing | Aug 29, 1933 00:00 | US-1924115-A // Protective means for electrical systems // Ferrell Enoch B. // Bell Telephone Labor Inc |