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 2389076.pdf | 520 kB | Shaun Ewing | Nov 13, 1945 00:00 |
|
US-2389076-A // Testing arrangement for trunks to community dial offices // Perry Anthony T. // American Telephone & Telegraph | |||
| Version 1 (current) | 520 kB | Shaun Ewing | Nov 13, 1945 00:00 | US-2389076-A // Testing arrangement for trunks to community dial offices // Perry Anthony T. // American Telephone & Telegraph | ||||
| PDF File 2306214.pdf | 519 kB | Shaun Ewing | Dec 22, 1942 00:00 |
|
US-2306214-A // Telegraph system // Hanley Frank Harold // American Telephone & Telegraph | |||
| Version 1 (current) | 519 kB | Shaun Ewing | Dec 22, 1942 00:00 | US-2306214-A // Telegraph system // Hanley Frank Harold // American Telephone & Telegraph | ||||
| PDF File 2432134.pdf | 516 kB | Shaun Ewing | Dec 09, 1947 00:00 |
|
US-2432134-A // Directional radio system // Bagnall Vernon B. // American Telephone & Telegraph | |||
| Version 1 (current) | 516 kB | Shaun Ewing | Dec 09, 1947 00:00 | US-2432134-A // Directional radio system // Bagnall Vernon B. // American Telephone & Telegraph | ||||
| PDF File 2257685.pdf | 516 kB | Shaun Ewing | Sept 30, 1941 00:00 |
|
US-2257685-A // Oscillation generator // Hidy John William // American Telephone & Telegraph | |||
| Version 1 (current) | 516 kB | Shaun Ewing | Sept 30, 1941 00:00 | US-2257685-A // Oscillation generator // Hidy John William // American Telephone & Telegraph | ||||
| PDF File 2418401.pdf | 513 kB | Shaun Ewing | Apr 01, 1947 00:00 |
|
US-2418401-A // Testing system for nontyping selectors // Foley Daniel Elmore ; Johnson Walter Daniel // American Telephone & Telegraph | |||
| Version 1 (current) | 513 kB | Shaun Ewing | Apr 01, 1947 00:00 | US-2418401-A // Testing system for nontyping selectors // Foley Daniel Elmore ; Johnson Walter Daniel // American Telephone & Telegraph | ||||
| PDF File 2804502.pdf | 511 kB | Shaun Ewing | Aug 27, 1957 00:00 |
|
US-2804502-A // Coin collector // Iwema Bernard // American Telephone & Telegraph | |||
| Version 1 (current) | 511 kB | Shaun Ewing | Aug 27, 1957 00:00 | US-2804502-A // Coin collector // Iwema Bernard // American Telephone & Telegraph | ||||
| PDF File 2405281.pdf | 510 kB | Shaun Ewing | Aug 06, 1946 00:00 |
|
US-2405281-A // Object locater // Bemis Edwin Walter // American Telephone & Telegraph | |||
| Version 1 (current) | 510 kB | Shaun Ewing | Aug 06, 1946 00:00 | US-2405281-A // Object locater // Bemis Edwin Walter // American Telephone & Telegraph | ||||
| PDF File 2350177.pdf | 508 kB | Shaun Ewing | May 30, 1944 00:00 |
|
US-2350177-A // Telephone measuring system // Macken Harold Irving // American Telephone & Telegraph | |||
| Version 1 (current) | 508 kB | Shaun Ewing | May 30, 1944 00:00 | US-2350177-A // Telephone measuring system // Macken Harold Irving // American Telephone & Telegraph | ||||
| PDF File 3288944.pdf | 505 kB | Shaun Ewing | Nov 29, 1966 00:00 |
|
US-3288944-A // Apparatus to audibly identify individual conductors in a multiconductor cable // Fleming Norman P. // American Telephone & Telegraph | |||
| Version 1 (current) | 505 kB | Shaun Ewing | Nov 29, 1966 00:00 | US-3288944-A // Apparatus to audibly identify individual conductors in a multiconductor cable // Fleming Norman P. // American Telephone & Telegraph | ||||
| PDF File 2284247.pdf | 505 kB | Shaun Ewing | May 26, 1942 00:00 |
|
US-2284247-A // Radio signaling system // Bagnall Vernon Bernard // American Telephone & Telegraph | |||
| Version 1 (current) | 505 kB | Shaun Ewing | May 26, 1942 00:00 | US-2284247-A // Radio signaling system // Bagnall Vernon Bernard // American Telephone & Telegraph | ||||
| PDF File 2535872.pdf | 504 kB | Shaun Ewing | Dec 26, 1950 00:00 |
|
US-2535872-A // Signaling system // Shafer William Leroy // American Telephone & Telegraph | |||
| Version 1 (current) | 504 kB | Shaun Ewing | Dec 26, 1950 00:00 | US-2535872-A // Signaling system // Shafer William Leroy // American Telephone & Telegraph | ||||
| PDF File 2293629.pdf | 502 kB | Shaun Ewing | Aug 18, 1942 00:00 |
|
US-2293629-A // Telegraph system // Rowe William Luck // American Telephone & Telegraph | |||
| Version 1 (current) | 502 kB | Shaun Ewing | Aug 18, 1942 00:00 | US-2293629-A // Telegraph system // Rowe William Luck // American Telephone & Telegraph | ||||
| PDF File 2327474.pdf | 500 kB | Shaun Ewing | Aug 24, 1943 00:00 |
|
US-2327474-A // Selective telegraph system // Walker Charles Robert // American Telephone & Telegraph | |||
| Version 1 (current) | 500 kB | Shaun Ewing | Aug 24, 1943 00:00 | US-2327474-A // Selective telegraph system // Walker Charles Robert // American Telephone & Telegraph | ||||
| PDF File 2719232.pdf | 499 kB | Shaun Ewing | Sept 27, 1955 00:00 |
|
US-2719232-A // Method of calibrating an oscillator // Ehrlich Robert W. // American Telephone & Telegraph | |||
| Version 1 (current) | 499 kB | Shaun Ewing | Sept 27, 1955 00:00 | US-2719232-A // Method of calibrating an oscillator // Ehrlich Robert W. // American Telephone & Telegraph | ||||
| PDF File 2425820.pdf | 496 kB | Shaun Ewing | Aug 19, 1947 00:00 |
|
US-2425820-A // Selective system // Neiswinter James T. // American Telephone & Telegraph | |||
| Version 1 (current) | 496 kB | Shaun Ewing | Aug 19, 1947 00:00 | US-2425820-A // Selective system // Neiswinter James T. // American Telephone & Telegraph | ||||
| PDF File 2307901.pdf | 496 kB | Shaun Ewing | Jan 12, 1943 00:00 |
|
US-2307901-A // Gain control system // Thorpe John // American Telephone & Telegraph | |||
| Version 1 (current) | 496 kB | Shaun Ewing | Jan 12, 1943 00:00 | US-2307901-A // Gain control system // Thorpe John // American Telephone & Telegraph | ||||
| PDF File 2878306.pdf | 494 kB | Shaun Ewing | Mar 17, 1959 00:00 |
|
US-2878306-A // Teletypewriter testing system // Smith William R. // American Telephone & Telegraph | |||
| Version 1 (current) | 494 kB | Shaun Ewing | Mar 17, 1959 00:00 | US-2878306-A // Teletypewriter testing system // Smith William R. // American Telephone & Telegraph | ||||
| PDF File 2997543.pdf | 494 kB | Shaun Ewing | Aug 22, 1961 00:00 |
|
US-2997543-A // Reduction of effect of hits on telegraph reception // Britt Horace J. // American Telephone & Telegraph | |||
| Version 1 (current) | 494 kB | Shaun Ewing | Aug 22, 1961 00:00 | US-2997543-A // Reduction of effect of hits on telegraph reception // Britt Horace J. // American Telephone & Telegraph | ||||
| PDF File 4020295.pdf | 489 kB | Shaun Ewing | Apr 26, 1977 00:00 |
|
US-4020295-A // Rotary dial restriction circuit // Vuotto; Edward Joseph // American Telephone And Telegraph Company | |||
| Version 1 (current) | 489 kB | Shaun Ewing | Apr 26, 1977 00:00 | US-4020295-A // Rotary dial restriction circuit // Vuotto; Edward Joseph // American Telephone And Telegraph Company | ||||
| PDF File 2249164.pdf | 485 kB | Shaun Ewing | Jul 15, 1941 00:00 |
|
US-2249164-A // Electrical measuring system // Olson Nels Kermit // American Telephone & Telegraph | |||
| Version 1 (current) | 485 kB | Shaun Ewing | Jul 15, 1941 00:00 | US-2249164-A // Electrical measuring system // Olson Nels Kermit // American Telephone & Telegraph |
