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 1103421.pdf | 363 kB | Shaun Ewing | Jul 14, 1914 00:00 |
|
US-1103421-A // Cable telegraphy. // Isidor Kitsee // American Telephone & Telegraph | |||
| Version 1 (current) | 363 kB | Shaun Ewing | Jul 14, 1914 00:00 | US-1103421-A // Cable telegraphy. // Isidor Kitsee // American Telephone & Telegraph | ||||
| PDF File 1104956.pdf | 952 kB | Shaun Ewing | Jul 28, 1914 00:00 |
|
US-1104956-A // Telephone-operator's equipment. // William G. Blauvelt ; Edward C. Molina // American Telephone & Telegraph | |||
| Version 1 (current) | 952 kB | Shaun Ewing | Jul 28, 1914 00:00 | US-1104956-A // Telephone-operator's equipment. // William G. Blauvelt ; Edward C. Molina // American Telephone & Telegraph | ||||
| PDF File 1114174.pdf | 1.59 MB | Shaun Ewing | Oct 20, 1914 00:00 |
|
US-1114174-A // Controlling apparatus for telephone switching systems. // Edward C. Molina // American Telephone & Telegraph | |||
| Version 1 (current) | 1.59 MB | Shaun Ewing | Oct 20, 1914 00:00 | US-1114174-A // Controlling apparatus for telephone switching systems. // Edward C. Molina // American Telephone & Telegraph | ||||
| PDF File 1114725.pdf | 553 kB | Shaun Ewing | Oct 27, 1914 00:00 |
|
US-1114725-A // Means for determining time intervals in telephone systems. // William G. Blauvelt // American Telephone & Telegraph | |||
| Version 1 (current) | 553 kB | Shaun Ewing | Oct 27, 1914 00:00 | US-1114725-A // Means for determining time intervals in telephone systems. // William G. Blauvelt // American Telephone & Telegraph | ||||
| PDF File 1124904.pdf | 550 kB | Shaun Ewing | Jan 12, 1915 00:00 |
|
US-1124904-A // Artificial line. // Ray S. Hoyt // American Telephone & Telegraph | |||
| Version 1 (current) | 550 kB | Shaun Ewing | Jan 12, 1915 00:00 | US-1124904-A // Artificial line. // Ray S. Hoyt // American Telephone & Telegraph | ||||
| PDF File 1125954.pdf | 1.57 MB | Shaun Ewing | Jan 26, 1915 00:00 |
|
US-1125954-A // Telephone-exchange system. // Sidney Hand Browne // American Telephone & Telegraph | |||
| Version 1 (current) | 1.57 MB | Shaun Ewing | Jan 26, 1915 00:00 | US-1125954-A // Telephone-exchange system. // Sidney Hand Browne // American Telephone & Telegraph | ||||
| PDF File 1126956.pdf | 314 kB | Shaun Ewing | Feb 02, 1915 00:00 |
|
US-1126956-A // Method of and means for equalizing the potentials of grounding-points. // Alva B. Clark // American Telephone & Telegraph | |||
| Version 1 (current) | 314 kB | Shaun Ewing | Feb 02, 1915 00:00 | US-1126956-A // Method of and means for equalizing the potentials of grounding-points. // Alva B. Clark // American Telephone & Telegraph | ||||
| PDF File 1133750.pdf | 281 kB | Shaun Ewing | Mar 30, 1915 00:00 |
|
US-1133750-A // Transformer. // Thomas Shaw // American Telephone & Telegraph | |||
| Version 1 (current) | 281 kB | Shaun Ewing | Mar 30, 1915 00:00 | US-1133750-A // Transformer. // Thomas Shaw // American Telephone & Telegraph | ||||
| PDF File 1144560.pdf | 897 kB | Shaun Ewing | Jun 29, 1915 00:00 |
|
US-1144560-A // Indicating system. // Edward C. Molina // American Telephone & Telegraph | |||
| Version 1 (current) | 897 kB | Shaun Ewing | Jun 29, 1915 00:00 | US-1144560-A // Indicating system. // Edward C. Molina // American Telephone & Telegraph | ||||
| PDF File 1167677.pdf | 688 kB | Shaun Ewing | Jan 11, 1916 00:00 |
|
US-1167677-A // System for measuring capacities. // George A. Campbell ; Otto B. Blackwell ; Edwin H. Colpitts // American Telephone & Telegraph | |||
| Version 1 (current) | 688 kB | Shaun Ewing | Jan 11, 1916 00:00 | US-1167677-A // System for measuring capacities. // George A. Campbell ; Otto B. Blackwell ; Edwin H. Colpitts // American Telephone & Telegraph | ||||
| PDF File 1167693.pdf | 840 kB | Shaun Ewing | Jan 11, 1916 00:00 |
|
US-1167693-A // Artificial line. // Ray S. Hoyt // American Telephone & Telegraph | |||
| Version 1 (current) | 840 kB | Shaun Ewing | Jan 11, 1916 00:00 | US-1167693-A // Artificial line. // Ray S. Hoyt // American Telephone & Telegraph | ||||
| PDF File 1167694.pdf | 162 kB | Shaun Ewing | Jan 11, 1916 00:00 |
|
US-1167694-A // Artificial line. // Ray S. Hoyt // American Telephone & Telegraph | |||
| Version 1 (current) | 162 kB | Shaun Ewing | Jan 11, 1916 00:00 | US-1167694-A // Artificial line. // Ray S. Hoyt // American Telephone & Telegraph | ||||
| PDF File 1172760.pdf | 731 kB | Shaun Ewing | Feb 22, 1916 00:00 |
|
US-1172760-A // System of call distribution. // Henry M. Bascom // American Telephone & Telegraph | |||
| Version 1 (current) | 731 kB | Shaun Ewing | Feb 22, 1916 00:00 | US-1172760-A // System of call distribution. // Henry M. Bascom // American Telephone & Telegraph | ||||
| PDF File 1173655.pdf | 661 kB | Shaun Ewing | Feb 29, 1916 00:00 |
|
US-1173655-A // Phantom circuit. // Frank H. Fay ; Thomas Shaw ; James J. Pilliod // American Telephone & Telegraph | |||
| Version 1 (current) | 661 kB | Shaun Ewing | Feb 29, 1916 00:00 | US-1173655-A // Phantom circuit. // Frank H. Fay ; Thomas Shaw ; James J. Pilliod // American Telephone & Telegraph | ||||
| PDF File 1174187.pdf | 325 kB | Shaun Ewing | Mar 07, 1916 00:00 |
|
US-1174187-A // Loading-coil. // Thomas Shaw // American Telephone & Telegraph | |||
| Version 1 (current) | 325 kB | Shaun Ewing | Mar 07, 1916 00:00 | US-1174187-A // Loading-coil. // Thomas Shaw // American Telephone & Telegraph | ||||
| PDF File 1175111.pdf | 204 kB | Shaun Ewing | Mar 14, 1916 00:00 |
|
US-1175111-A // Means for preventing inductive disturbance in the test-circuits of telephone-switchboards. // Henry M. Bascom // American Telephone & Telegraph | |||
| Version 1 (current) | 204 kB | Shaun Ewing | Mar 14, 1916 00:00 | US-1175111-A // Means for preventing inductive disturbance in the test-circuits of telephone-switchboards. // Henry M. Bascom // American Telephone & Telegraph | ||||
| PDF File 1175112.pdf | 843 kB | Shaun Ewing | Mar 14, 1916 00:00 |
|
US-1175112-A // Telephone system. // Henry M. Bascom // American Telephone & Telegraph | |||
| Version 1 (current) | 843 kB | Shaun Ewing | Mar 14, 1916 00:00 | US-1175112-A // Telephone system. // Henry M. Bascom // American Telephone & Telegraph | ||||
| PDF File 1186577.pdf | 384 kB | Shaun Ewing | Jun 13, 1916 00:00 |
|
US-1186577-A // Attachment for coin-collecting apparatus. // Alfred U. Hoefer ; Leon D. Barrows // American Telephone & Telegraph | |||
| Version 1 (current) | 384 kB | Shaun Ewing | Jun 13, 1916 00:00 | US-1186577-A // Attachment for coin-collecting apparatus. // Alfred U. Hoefer ; Leon D. Barrows // American Telephone & Telegraph | ||||
| PDF File 1188531.pdf | 298 kB | Shaun Ewing | Jun 27, 1916 00:00 |
|
US-1188531-A // Duplex wireless system. // John R. Carson // American Telephone & Telegraph | |||
| Version 1 (current) | 298 kB | Shaun Ewing | Jun 27, 1916 00:00 | US-1188531-A // Duplex wireless system. // John R. Carson // American Telephone & Telegraph | ||||
| PDF File 1198212.pdf | 1.82 MB | Shaun Ewing | Sept 12, 1916 00:00 |
|
US-1198212-A // Telephone-repeater. // Elwood Grissinger // American Telephone & Telegraph | |||
| Version 1 (current) | 1.82 MB | Shaun Ewing | Sept 12, 1916 00:00 | US-1198212-A // Telephone-repeater. // Elwood Grissinger // American Telephone & Telegraph |
