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 392301.pdf | 950 kB | Shaun Ewing | Nov 06, 1888 00:00 |
|
US-392301-A // Telephonic Circuit. // Robert M. Bailey, Op Pennsylvania // The American Bell Telephone Company, Op Boston, Massachusetts. | |||
| Version 1 (current) | 950 kB | Shaun Ewing | Nov 06, 1888 00:00 | US-392301-A // Telephonic Circuit. // Robert M. Bailey, Op Pennsylvania // The American Bell Telephone Company, Op Boston, Massachusetts. | ||||
| PDF File 686340.pdf | 946 kB | Shaun Ewing | Nov 12, 1901 00:00 |
|
US-686340-A // Service-meter apparatus for telephone-circuits. // Ernest C. Robes // American Bell Telephone Co | |||
| Version 1 (current) | 946 kB | Shaun Ewing | Nov 12, 1901 00:00 | US-686340-A // Service-meter apparatus for telephone-circuits. // Ernest C. Robes // American Bell Telephone Co | ||||
| PDF File 633403.pdf | 946 kB | Shaun Ewing | Sept 19, 1899 00:00 |
|
US-633403-A // Telephone-exchange switchboard signaling apparatus. // Thomas C. Wales, Jr. // American Bell Telephone Co | |||
| Version 1 (current) | 946 kB | Shaun Ewing | Sept 19, 1899 00:00 | US-633403-A // Telephone-exchange switchboard signaling apparatus. // Thomas C. Wales, Jr. // American Bell Telephone Co | ||||
| PDF File 711973.pdf | 941 kB | Shaun Ewing | Oct 28, 1902 00:00 |
|
US-711973-A // Signaling and switchboard apparatus for telephone-exchange circuits. // David S. Hulfish // American Bell Telephone Co | |||
| Version 1 (current) | 941 kB | Shaun Ewing | Oct 28, 1902 00:00 | US-711973-A // Signaling and switchboard apparatus for telephone-exchange circuits. // David S. Hulfish // American Bell Telephone Co | ||||
| PDF File 375862.pdf | 919 kB | Shaun Ewing | Jan 03, 1888 00:00 |
|
US-375862-A // Telephone. Jpbcipication Joisilas Part of Letteis Patent No. 375,862, Flated January 3,1888. // V. Maximilian Beethold, Of // The American Bell Telephone Company, Op Boston, Massachusetts. | |||
| Version 1 (current) | 919 kB | Shaun Ewing | Jan 03, 1888 00:00 | US-375862-A // Telephone. Jpbcipication Joisilas Part of Letteis Patent No. 375,862, Flated January 3,1888. // V. Maximilian Beethold, Of // The American Bell Telephone Company, Op Boston, Massachusetts. | ||||
| PDF File 712455.pdf | 913 kB | Shaun Ewing | Oct 28, 1902 00:00 |
|
US-712455-A // Busy-test system. // David S. Hulfish // American Bell Telephone Co | |||
| Version 1 (current) | 913 kB | Shaun Ewing | Oct 28, 1902 00:00 | US-712455-A // Busy-test system. // David S. Hulfish // American Bell Telephone Co | ||||
| PDF File 501087.pdf | 910 kB | Shaun Ewing | Jul 11, 1893 00:00 |
|
US-501087-A // Electric Signaling. // Lockwood, Thomas D. And Sherwood J. Larned Of Evanston Illinois // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 910 kB | Shaun Ewing | Jul 11, 1893 00:00 | US-501087-A // Electric Signaling. // Lockwood, Thomas D. And Sherwood J. Larned Of Evanston Illinois // American Telephone & Telegraph, New York NY | ||||
| PDF File 666213.pdf | 906 kB | Shaun Ewing | Jan 15, 1901 00:00 |
|
US-666213-A // Telephone-exchange circuit and appliance. // George K. Thompson // American Bell Telephone Co | |||
| Version 1 (current) | 906 kB | Shaun Ewing | Jan 15, 1901 00:00 | US-666213-A // Telephone-exchange circuit and appliance. // George K. Thompson // American Bell Telephone Co | ||||
| PDF File 540969.pdf | 899 kB | Shaun Ewing | Jun 11, 1895 00:00 |
|
US-540969-A // Telephone, // Stephen Dudley Field, Of // The American Bell Telephone Company, Of Boston, Massachusetts. | |||
| Version 1 (current) | 899 kB | Shaun Ewing | Jun 11, 1895 00:00 | US-540969-A // Telephone, // Stephen Dudley Field, Of // The American Bell Telephone Company, Of Boston, Massachusetts. | ||||
| PDF File 251810.pdf | 894 kB | Shaun Ewing | Jan 03, 1882 00:00 |
|
US-251810-A // Telephone-signal. // Geoege Lee Anders, Of Massachusetts // American Bell Telephone Company, Op Same Place. | |||
| Version 1 (current) | 894 kB | Shaun Ewing | Jan 03, 1882 00:00 | US-251810-A // Telephone-signal. // Geoege Lee Anders, Of Massachusetts // American Bell Telephone Company, Op Same Place. | ||||
| PDF File 543559.pdf | 894 kB | Shaun Ewing | Jul 30, 1895 00:00 |
|
US-543559-A // Signaling Apparatus for Telephone-exchange Circuits. // Joseph J. Oconnell, Of Illinois // The American Bell Telephone Company, Of Boston, Massachusetts. | |||
| Version 1 (current) | 894 kB | Shaun Ewing | Jul 30, 1895 00:00 | US-543559-A // Signaling Apparatus for Telephone-exchange Circuits. // Joseph J. Oconnell, Of Illinois // The American Bell Telephone Company, Of Boston, Massachusetts. | ||||
| PDF File 626111.pdf | 886 kB | Shaun Ewing | May 30, 1899 00:00 |
|
US-626111-A // Telephone Connecting-circuit. // George K. Thompson, Of And Thomas C. Wales Jr. Of Newton Massachusetts // The American Bell Telephone Company, Of Boston, Massachusetts. | |||
| Version 1 (current) | 886 kB | Shaun Ewing | May 30, 1899 00:00 | US-626111-A // Telephone Connecting-circuit. // George K. Thompson, Of And Thomas C. Wales Jr. Of Newton Massachusetts // The American Bell Telephone Company, Of Boston, Massachusetts. | ||||
| PDF File 648805.pdf | 884 kB | Shaun Ewing | May 01, 1900 00:00 |
|
US-648805-A // Service-meter apparatus and circuit for telephone-substations. // Herbert E. Shreeve // American Bell Telephone Co | |||
| Version 1 (current) | 884 kB | Shaun Ewing | May 01, 1900 00:00 | US-648805-A // Service-meter apparatus and circuit for telephone-substations. // Herbert E. Shreeve // American Bell Telephone Co | ||||
| PDF File 682152.pdf | 875 kB | Shaun Ewing | Sept 03, 1901 00:00 |
|
US-682152-A // Telephone-exchange apparatus. // Almon B. Stetson // American Bell Telephone Co | |||
| Version 1 (current) | 875 kB | Shaun Ewing | Sept 03, 1901 00:00 | US-682152-A // Telephone-exchange apparatus. // Almon B. Stetson // American Bell Telephone Co | ||||
| PDF File 668554.pdf | 868 kB | Shaun Ewing | Feb 19, 1901 00:00 |
|
US-668554-A // Electrical relay and circuit. // Albert M. Bullard ; Louis A. Falk // American Bell Telephone Co | |||
| Version 1 (current) | 868 kB | Shaun Ewing | Feb 19, 1901 00:00 | US-668554-A // Electrical relay and circuit. // Albert M. Bullard ; Louis A. Falk // American Bell Telephone Co | ||||
| PDF File 412579.pdf | 864 kB | Shaun Ewing | Oct 08, 1889 00:00 |
|
US-412579-A // Microphonic Transmitter. // Bruno Abdank - Abakanowicz, Of France // The American Bell Telephone Company, Of Boston, Massachusetts. | |||
| Version 1 (current) | 864 kB | Shaun Ewing | Oct 08, 1889 00:00 | US-412579-A // Microphonic Transmitter. // Bruno Abdank - Abakanowicz, Of France // The American Bell Telephone Company, Of Boston, Massachusetts. | ||||
| PDF File 552734.pdf | 847 kB | Shaun Ewing | Jan 07, 1896 00:00 |
|
US-552734-A // Telephone Switchboard and Circuit. // Thomas C. Wales, Jr. Of Boston Massachusetts And Theodore Spencer Of Philadelphia Pennsylvania // The American Bell Telephone Company, Of Boston, Massachusetts. | |||
| Version 1 (current) | 847 kB | Shaun Ewing | Jan 07, 1896 00:00 | US-552734-A // Telephone Switchboard and Circuit. // Thomas C. Wales, Jr. Of Boston Massachusetts And Theodore Spencer Of Philadelphia Pennsylvania // The American Bell Telephone Company, Of Boston, Massachusetts. | ||||
| PDF File 726476.pdf | 845 kB | Shaun Ewing | Apr 28, 1903 00:00 |
|
US-726476-A // Electrical distribution and selective distribution. // John Stone Stone // American Bell Telephone Co | |||
| Version 1 (current) | 845 kB | Shaun Ewing | Apr 28, 1903 00:00 | US-726476-A // Electrical distribution and selective distribution. // John Stone Stone // American Bell Telephone Co | ||||
| PDF File 640404.pdf | 834 kB | Shaun Ewing | Jan 02, 1900 00:00 |
|
US-640404-A // Telephone central-station apparatus and circuits. // Samuel G. Mcmeen // American Bell Telephone Co | |||
| Version 1 (current) | 834 kB | Shaun Ewing | Jan 02, 1900 00:00 | US-640404-A // Telephone central-station apparatus and circuits. // Samuel G. Mcmeen // American Bell Telephone Co | ||||
| PDF File 726368.pdf | 832 kB | Shaun Ewing | Apr 28, 1903 00:00 |
|
US-726368-A // Electrical distribution and selective distribution. // John Stone Stone // American Bell Telephone Co | |||
| Version 1 (current) | 832 kB | Shaun Ewing | Apr 28, 1903 00:00 | US-726368-A // Electrical distribution and selective distribution. // John Stone Stone // American Bell Telephone Co |
