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 2259103.pdf | 429 kB | Shaun Ewing | Oct 14, 1941 00:00 |
|
US-2259103-A // Automatic switching device // Drake Percy B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 429 kB | Shaun Ewing | Oct 14, 1941 00:00 | US-2259103-A // Automatic switching device // Drake Percy B. // Bell Telephone Labor Inc | ||||
| PDF File 2259284.pdf | 886 kB | Shaun Ewing | Oct 14, 1941 00:00 |
|
US-2259284-A // Sweep circuits // Jr. Millard W. Baldwin, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 886 kB | Shaun Ewing | Oct 14, 1941 00:00 | US-2259284-A // Sweep circuits // Jr. Millard W. Baldwin, // Bell Telephone Labor Inc | ||||
| PDF File 2259309.pdf | 659 kB | Shaun Ewing | Oct 14, 1941 00:00 |
|
US-2259309-A // Chronometric instrument // Hibbard Frank H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 659 kB | Shaun Ewing | Oct 14, 1941 00:00 | US-2259309-A // Chronometric instrument // Hibbard Frank H. // Bell Telephone Labor Inc | ||||
| PDF File 2259317.pdf | 901 kB | Shaun Ewing | Oct 14, 1941 00:00 |
|
US-2259317-A // Piezoelectric crystal apparatus // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 901 kB | Shaun Ewing | Oct 14, 1941 00:00 | US-2259317-A // Piezoelectric crystal apparatus // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2259514.pdf | 397 kB | Shaun Ewing | Oct 21, 1941 00:00 |
|
US-2259514-A // Electromagnetic device // Branson David E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 397 kB | Shaun Ewing | Oct 21, 1941 00:00 | US-2259514-A // Electromagnetic device // Branson David E. // Bell Telephone Labor Inc | ||||
| PDF File 2259528.pdf | 1.33 MB | Shaun Ewing | Oct 21, 1941 00:00 |
|
US-2259528-A // Crystal controlled oscillator for ultra-high frequencies // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.33 MB | Shaun Ewing | Oct 21, 1941 00:00 | US-2259528-A // Crystal controlled oscillator for ultra-high frequencies // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2259529.pdf | 1.58 MB | Shaun Ewing | Oct 21, 1941 00:00 |
|
US-2259529-A // Piezoelectric crystal apparatus // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.58 MB | Shaun Ewing | Oct 21, 1941 00:00 | US-2259529-A // Piezoelectric crystal apparatus // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2259637.pdf | 1.17 MB | Shaun Ewing | Oct 21, 1941 00:00 |
|
US-2259637-A // Telegraph repeater // Hearn Richard B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.17 MB | Shaun Ewing | Oct 21, 1941 00:00 | US-2259637-A // Telegraph repeater // Hearn Richard B. // Bell Telephone Labor Inc | ||||
| PDF File 2259661.pdf | 477 kB | Shaun Ewing | Oct 21, 1941 00:00 |
|
US-2259661-A // Electrical switch // Pollard Charles E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 477 kB | Shaun Ewing | Oct 21, 1941 00:00 | US-2259661-A // Electrical switch // Pollard Charles E. // Bell Telephone Labor Inc | ||||
| PDF File 2259945.pdf | 809 kB | Shaun Ewing | Oct 21, 1941 00:00 |
|
US-2259945-A // Transmission control // Velia Alton C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 809 kB | Shaun Ewing | Oct 21, 1941 00:00 | US-2259945-A // Transmission control // Velia Alton C. // Bell Telephone Labor Inc | ||||
| PDF File 2259953.pdf | 649 kB | Shaun Ewing | Oct 21, 1941 00:00 |
|
US-2259953-A // Switching device // Flanders Paul B. ; Pollard Charles E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 649 kB | Shaun Ewing | Oct 21, 1941 00:00 | US-2259953-A // Switching device // Flanders Paul B. ; Pollard Charles E. // Bell Telephone Labor Inc | ||||
| PDF File 2259957.pdf | 917 kB | Shaun Ewing | Oct 21, 1941 00:00 |
|
US-2259957-A // Piezoelectric crystal holder // Koerner Lawrence F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 917 kB | Shaun Ewing | Oct 21, 1941 00:00 | US-2259957-A // Piezoelectric crystal holder // Koerner Lawrence F. // Bell Telephone Labor Inc | ||||
| PDF File 2259978.pdf | 498 kB | Shaun Ewing | Oct 21, 1941 00:00 |
|
US-2259978-A // Condenser dielectric and method of preparing it // Mclean David A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 498 kB | Shaun Ewing | Oct 21, 1941 00:00 | US-2259978-A // Condenser dielectric and method of preparing it // Mclean David A. // Bell Telephone Labor Inc | ||||
| PDF File 2260160.pdf | 995 kB | Shaun Ewing | Oct 21, 1941 00:00 |
|
US-2260160-A // Location and identification of faults in signaling transmission systems // Benning Harvey H. ; Leibe Frank A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 995 kB | Shaun Ewing | Oct 21, 1941 00:00 | US-2260160-A // Location and identification of faults in signaling transmission systems // Benning Harvey H. ; Leibe Frank A. // Bell Telephone Labor Inc | ||||
| PDF File 2260170.pdf | 1.08 MB | Shaun Ewing | Oct 21, 1941 00:00 |
|
US-2260170-A // Transmission system embodying loud-speakers // Curt Herbert C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.08 MB | Shaun Ewing | Oct 21, 1941 00:00 | US-2260170-A // Transmission system embodying loud-speakers // Curt Herbert C. // Bell Telephone Labor Inc | ||||
| PDF File 2260202.pdf | 832 kB | Shaun Ewing | Oct 21, 1941 00:00 |
|
US-2260202-A // Sound film recording or reproducing device // Wente Edward C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 832 kB | Shaun Ewing | Oct 21, 1941 00:00 | US-2260202-A // Sound film recording or reproducing device // Wente Edward C. // Bell Telephone Labor Inc | ||||
| PDF File 2260313.pdf | 965 kB | Shaun Ewing | Oct 28, 1941 00:00 |
|
US-2260313-A // Cathode ray tube // Gray Frank // Bell Telephone Labor Inc | |||
| Version 1 (current) | 965 kB | Shaun Ewing | Oct 28, 1941 00:00 | US-2260313-A // Cathode ray tube // Gray Frank // Bell Telephone Labor Inc | ||||
| PDF File 2260318.pdf | 662 kB | Shaun Ewing | Oct 28, 1941 00:00 |
|
US-2260318-A // Telephone system // Hecht George // Bell Telephone Labor Inc | |||
| Version 1 (current) | 662 kB | Shaun Ewing | Oct 28, 1941 00:00 | US-2260318-A // Telephone system // Hecht George // Bell Telephone Labor Inc | ||||
| PDF File 2260493.pdf | 413 kB | Shaun Ewing | Oct 28, 1941 00:00 |
|
US-2260493-A // Amplifier // Stillwell Albert L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 413 kB | Shaun Ewing | Oct 28, 1941 00:00 | US-2260493-A // Amplifier // Stillwell Albert L. // Bell Telephone Labor Inc | ||||
| PDF File 2260522.pdf | 838 kB | Shaun Ewing | Oct 28, 1941 00:00 |
|
US-2260522-A // Coin collector apparatus // Henning Harley A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 838 kB | Shaun Ewing | Oct 28, 1941 00:00 | US-2260522-A // Coin collector apparatus // Henning Harley A. // Bell Telephone Labor Inc |
