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 920259.pdf | 818 kB | Shaun Ewing | May 04, 1909 00:00 |
|
US-920259-A // Call-distributing telephone-exchange system. // Sidney Hand Browne // American Telephone & Telegraph | |||
| Version 1 (current) | 818 kB | Shaun Ewing | May 04, 1909 00:00 | US-920259-A // Call-distributing telephone-exchange system. // Sidney Hand Browne // American Telephone & Telegraph | ||||
| PDF File 920938.pdf | 198 kB | Shaun Ewing | May 11, 1909 00:00 |
|
US-920938-A // Concentrating device for telephone-transmitters. // Oscar F. Falk // American Telephone & Telegraph | |||
| Version 1 (current) | 198 kB | Shaun Ewing | May 11, 1909 00:00 | US-920938-A // Concentrating device for telephone-transmitters. // Oscar F. Falk // American Telephone & Telegraph | ||||
| PDF File 926994.pdf | 1.09 MB | Shaun Ewing | Jul 06, 1909 00:00 |
|
US-926994-A // Telephone-connecting apparatus. // Edward C. Molina // American Telephone & Telegraph | |||
| Version 1 (current) | 1.09 MB | Shaun Ewing | Jul 06, 1909 00:00 | US-926994-A // Telephone-connecting apparatus. // Edward C. Molina // American Telephone & Telegraph | ||||
| PDF File 927025.pdf | 1.30 MB | Shaun Ewing | Jul 06, 1909 00:00 |
|
US-927025-A // Call-distributing telephone-exchange system. // Sidney Hand Browne // American Telephone & Telegraph | |||
| Version 1 (current) | 1.30 MB | Shaun Ewing | Jul 06, 1909 00:00 | US-927025-A // Call-distributing telephone-exchange system. // Sidney Hand Browne // American Telephone & Telegraph | ||||
| PDF File 930547.pdf | 1.07 MB | Shaun Ewing | Aug 10, 1909 00:00 |
|
US-930547-A // Apparatus and system for measuring telephone service. // David S. Hulfish // American Telephone & Telegraph | |||
| Version 1 (current) | 1.07 MB | Shaun Ewing | Aug 10, 1909 00:00 | US-930547-A // Apparatus and system for measuring telephone service. // David S. Hulfish // American Telephone & Telegraph | ||||
| PDF File 931231.pdf | 257 kB | Shaun Ewing | Aug 17, 1909 00:00 |
|
US-931231-A // Mounting for telephone instruments. // Herbert E. Shreeve // American Telephone & Telegraph | |||
| Version 1 (current) | 257 kB | Shaun Ewing | Aug 17, 1909 00:00 | US-931231-A // Mounting for telephone instruments. // Herbert E. Shreeve // American Telephone & Telegraph | ||||
| PDF File 937189.pdf | 395 kB | Shaun Ewing | Oct 19, 1909 00:00 |
|
US-937189-A // Telephone repeating system. // Herbert E. Shreeve // American Telephone & Telegraph | |||
| Version 1 (current) | 395 kB | Shaun Ewing | Oct 19, 1909 00:00 | US-937189-A // Telephone repeating system. // Herbert E. Shreeve // American Telephone & Telegraph | ||||
| PDF File 938026.pdf | 530 kB | Shaun Ewing | Oct 26, 1909 00:00 |
|
US-938026-A // Locking and signaling system for telephone-registers. // Alexander S. Spiegel // American Telephone & Telegraph | |||
| Version 1 (current) | 530 kB | Shaun Ewing | Oct 26, 1909 00:00 | US-938026-A // Locking and signaling system for telephone-registers. // Alexander S. Spiegel // American Telephone & Telegraph | ||||
| PDF File 938039.pdf | 824 kB | Shaun Ewing | Oct 26, 1909 00:00 |
|
US-938039-A // Apparatus and system for measuring telephone service. // Sidney Hand Browne // American Telephone & Telegraph | |||
| Version 1 (current) | 824 kB | Shaun Ewing | Oct 26, 1909 00:00 | US-938039-A // Apparatus and system for measuring telephone service. // Sidney Hand Browne // American Telephone & Telegraph | ||||
| PDF File 940654.pdf | 601 kB | Shaun Ewing | Nov 23, 1909 00:00 |
|
US-940654-A // Art of nullifying inductive disturbances. // William E. Athearn // American Telephone & Telegraph | |||
| Version 1 (current) | 601 kB | Shaun Ewing | Nov 23, 1909 00:00 | US-940654-A // Art of nullifying inductive disturbances. // William E. Athearn // American Telephone & Telegraph | ||||
| PDF File 940655.pdf | 767 kB | Shaun Ewing | Nov 23, 1909 00:00 |
|
US-940655-A // Electrical conducting system. // William E. Athearn // American Telephone & Telegraph | |||
| Version 1 (current) | 767 kB | Shaun Ewing | Nov 23, 1909 00:00 | US-940655-A // Electrical conducting system. // William E. Athearn // American Telephone & Telegraph | ||||
| PDF File 940658.pdf | 583 kB | Shaun Ewing | Nov 23, 1909 00:00 |
|
US-940658-A // System for nullifying inductive disturbances. // John A. Barrett // American Telephone & Telegraph | |||
| Version 1 (current) | 583 kB | Shaun Ewing | Nov 23, 1909 00:00 | US-940658-A // System for nullifying inductive disturbances. // John A. Barrett // American Telephone & Telegraph | ||||
| PDF File 940673.pdf | 685 kB | Shaun Ewing | Nov 23, 1909 00:00 |
|
US-940673-A // Telephone-key and means for actuating the same. // William Christensen // American Telephone & Telegraph | |||
| Version 1 (current) | 685 kB | Shaun Ewing | Nov 23, 1909 00:00 | US-940673-A // Telephone-key and means for actuating the same. // William Christensen // American Telephone & Telegraph | ||||
| PDF File 942807.pdf | 480 kB | Shaun Ewing | Dec 07, 1909 00:00 |
|
US-942807-A // Telegraphic repeating apparatus. // William E. Athearn // American Telephone & Telegraph | |||
| Version 1 (current) | 480 kB | Shaun Ewing | Dec 07, 1909 00:00 | US-942807-A // Telegraphic repeating apparatus. // William E. Athearn // American Telephone & Telegraph | ||||
| PDF File 980921.pdf | 545 kB | Shaun Ewing | Jan 10, 1911 00:00 |
|
US-980921-A // Loaded phantom-circuit. // George A. Campbell ; Thomas Shaw // American Telephone & Telegraph | |||
| Version 1 (current) | 545 kB | Shaun Ewing | Jan 10, 1911 00:00 | US-980921-A // Loaded phantom-circuit. // George A. Campbell ; Thomas Shaw // American Telephone & Telegraph | ||||
| PDF File 981015.pdf | 438 kB | Shaun Ewing | Jan 10, 1911 00:00 |
|
US-981015-A // Phantomed loaded circuit. // Thomas Shaw // American Telephone & Telegraph | |||
| Version 1 (current) | 438 kB | Shaun Ewing | Jan 10, 1911 00:00 | US-981015-A // Phantomed loaded circuit. // Thomas Shaw // American Telephone & Telegraph | ||||
| PDF File 990219.pdf | 463 kB | Shaun Ewing | Apr 25, 1911 00:00 |
|
US-990219-A // Supervisory signaling system. // William G. Blauvelt // American Telephone & Telegraph | |||
| Version 1 (current) | 463 kB | Shaun Ewing | Apr 25, 1911 00:00 | US-990219-A // Supervisory signaling system. // William G. Blauvelt // American Telephone & Telegraph |
