Skip to main content
assistive.skiplink.to.breadcrumbs
assistive.skiplink.to.header.menu
assistive.skiplink.to.action.menu
assistive.skiplink.to.quick.search

Attachments

Name	Size	Creator	Creation Date	Labels	Comment
PDF File 252986.pdf	1004 kB	Shaun Ewing	Jan 31, 1882 00:00	No labels	US-252986-A // Telephone-exchange Apparatus. // George Lee Anders, Of County Of Middlesex England // The American Bell Telephone Company, Of Boston, Massachusetts.	View
Version 1 (current)	1004 kB	Shaun Ewing	Jan 31, 1882 00:00		US-252986-A // Telephone-exchange Apparatus. // George Lee Anders, Of County Of Middlesex England // The American Bell Telephone Company, Of Boston, Massachusetts.
PDF File 252641.pdf	488 kB	Shaun Ewing	Jan 24, 1882 00:00	No labels	US-252641-A // Compound Telephone. // George Lee Anders, Op County Of Middlesex England // The American Bell Telephone Company, Of Boston, Massachusetts.	View
Version 1 (current)	488 kB	Shaun Ewing	Jan 24, 1882 00:00		US-252641-A // Compound Telephone. // George Lee Anders, Op County Of Middlesex England // The American Bell Telephone Company, Of Boston, Massachusetts.
PDF File 251810.pdf	894 kB	Shaun Ewing	Jan 03, 1882 00:00	No labels	US-251810-A // Telephone-signal. // Geoege Lee Anders, Of Massachusetts // American Bell Telephone Company, Op Same Place.	View
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 251807.pdf	974 kB	Shaun Ewing	Jan 03, 1882 00:00	No labels	US-251807-A // Signaling and Circuit-connecting Apparatus. // Thomas A. Watson, Op // The American Bell Telephone Company, Op Boston, Massachusetts.	View
Version 1 (current)	974 kB	Shaun Ewing	Jan 03, 1882 00:00		US-251807-A // Signaling and Circuit-connecting Apparatus. // Thomas A. Watson, Op // The American Bell Telephone Company, Op Boston, Massachusetts.
PDF File 251584.pdf	377 kB	Shaun Ewing	Dec 27, 1881 00:00	No labels	US-251584-A // Lock for Telephones. // J. Benjamin Henck, Jr. Of Boston Massachusetts // The American Bell Telephone Company, Of Same Place.	View
Version 1 (current)	377 kB	Shaun Ewing	Dec 27, 1881 00:00		US-251584-A // Lock for Telephones. // J. Benjamin Henck, Jr. Of Boston Massachusetts // The American Bell Telephone Company, Of Same Place.
PDF File 251326.pdf	203 kB	Shaun Ewing	Dec 20, 1881 00:00	No labels	US-251326-A // Telephone Pole-piece. // Thomas A. Watson, Op // The American Bell Telephone Company, Of Boston, Massachusetts.	View
Version 1 (current)	203 kB	Shaun Ewing	Dec 20, 1881 00:00		US-251326-A // Telephone Pole-piece. // Thomas A. Watson, Op // The American Bell Telephone Company, Of Boston, Massachusetts.
PDF File 250616.pdf	125 kB	Shaun Ewing	Dec 06, 1881 00:00	No labels	US-250616-A // Speaking-telephone. // Edward L. Wilson, Of Massachusetts // The American Bell Telephone Company, Of Same Place.	View
Version 1 (current)	125 kB	Shaun Ewing	Dec 06, 1881 00:00		US-250616-A // Speaking-telephone. // Edward L. Wilson, Of Massachusetts // The American Bell Telephone Company, Of Same Place.
PDF File 248815.pdf	380 kB	Shaun Ewing	Oct 25, 1881 00:00	No labels	US-248815-A // Telephone Circuit and Switch. // Thomas A. Watson, Of // The American Bell Telephone Company, Op Boston, Massachusetts.	View
Version 1 (current)	380 kB	Shaun Ewing	Oct 25, 1881 00:00		US-248815-A // Telephone Circuit and Switch. // Thomas A. Watson, Of // The American Bell Telephone Company, Op Boston, Massachusetts.
PDF File 246699.pdf	219 kB	Shaun Ewing	Sept 06, 1881 00:00	No labels	US-246699-A // Telephone. // Thomas A. Watson, Op // The American Bell Telephone Company, Of Boston, Massachusetts.	View
Version 1 (current)	219 kB	Shaun Ewing	Sept 06, 1881 00:00		US-246699-A // Telephone. // Thomas A. Watson, Op // The American Bell Telephone Company, Of Boston, Massachusetts.
PDF File 245600.pdf	614 kB	Shaun Ewing	Aug 16, 1881 00:00	No labels	US-245600-A // Telephone-signal. // George L. Anders, Of And Thomas A. Watson Of Everett // American Bell Telephone Company, Of Boston, Massachusetts.	View
Version 1 (current)	614 kB	Shaun Ewing	Aug 16, 1881 00:00		US-245600-A // Telephone-signal. // George L. Anders, Of And Thomas A. Watson Of Everett // American Bell Telephone Company, Of Boston, Massachusetts.
PDF File 241963.pdf	734 kB	Shaun Ewing	May 24, 1881 00:00	No labels	US-241963-A // Secrecy-switch for Telephones. // Ezba T. Gilliland, Of Indiana // The American Bell Telephone Company, Op Boston, Massachusetts.	View
Version 1 (current)	734 kB	Shaun Ewing	May 24, 1881 00:00		US-241963-A // Secrecy-switch for Telephones. // Ezba T. Gilliland, Of Indiana // The American Bell Telephone Company, Op Boston, Massachusetts.
PDF File 240878.pdf	825 kB	Shaun Ewing	May 03, 1881 00:00	No labels	US-240878-A // Telephone Signaling Apparatus. // George L-. Anders, Op Massachusetts // American Bell Telephone Company, Of Same Place.	View
Version 1 (current)	825 kB	Shaun Ewing	May 03, 1881 00:00		US-240878-A // Telephone Signaling Apparatus. // George L-. Anders, Op Massachusetts // American Bell Telephone Company, Of Same Place.
PDF File 240637.pdf	392 kB	Shaun Ewing	Apr 26, 1881 00:00	No labels	US-240637-A // Electric Speaking-telephone. // George L. Anders, Of Massachusetts // American Bell Telephone Company, Op Same Place.	View
Version 1 (current)	392 kB	Shaun Ewing	Apr 26, 1881 00:00		US-240637-A // Electric Speaking-telephone. // George L. Anders, Of Massachusetts // American Bell Telephone Company, Op Same Place.
PDF File 239134.pdf	203 kB	Shaun Ewing	Mar 22, 1881 00:00	No labels	US-239134-A // Signaling Apparatus for District-telephone Systems. // George Lee Anders, Of Massachusetts // American Bell Telephone Company, Of Same Piace.	View
Version 1 (current)	203 kB	Shaun Ewing	Mar 22, 1881 00:00		US-239134-A // Signaling Apparatus for District-telephone Systems. // George Lee Anders, Of Massachusetts // American Bell Telephone Company, Of Same Piace.
PDF File 239133.pdf	577 kB	Shaun Ewing	Mar 22, 1881 00:00	No labels	US-239133-A // Telephone-exchange System. // George L. Anders, Of And Thomas D. Lookwood Op Malden // American Bell Telephone Company, Of Boston, Mass.	View
Version 1 (current)	577 kB	Shaun Ewing	Mar 22, 1881 00:00		US-239133-A // Telephone-exchange System. // George L. Anders, Of And Thomas D. Lookwood Op Malden // American Bell Telephone Company, Of Boston, Mass.
PDF File 239132.pdf	559 kB	Shaun Ewing	Mar 22, 1881 00:00	No labels	US-239132-A // Telephone-exchange. // George Lee Anders, Of Massachusetts // American Bell Telephone Company, Op Same Place.	View
Version 1 (current)	559 kB	Shaun Ewing	Mar 22, 1881 00:00		US-239132-A // Telephone-exchange. // George Lee Anders, Of Massachusetts // American Bell Telephone Company, Op Same Place.
PDF File 237971.pdf	258 kB	Shaun Ewing	Feb 22, 1881 00:00	No labels	US-237971-A // Combined Telephone and Automatic Switch. // Ezea T. Gilliland, Of Int). // The American Bell Telephone Company, Op Boston, Mass.	View
Version 1 (current)	258 kB	Shaun Ewing	Feb 22, 1881 00:00		US-237971-A // Combined Telephone and Automatic Switch. // Ezea T. Gilliland, Of Int). // The American Bell Telephone Company, Op Boston, Mass.
PDF File 235616.pdf	222 kB	Shaun Ewing	Dec 21, 1880 00:00	No labels	US-235616-A // Process of Treating Selenium To Increase Its Electric Conductivity. // Alexander G. Bell, Op District Op Columbia And Sumner Taintee Op Wateetown Massachusetts ; Beli // American Bell Telephone Company.	View
Version 1 (current)	222 kB	Shaun Ewing	Dec 21, 1880 00:00		US-235616-A // Process of Treating Selenium To Increase Its Electric Conductivity. // Alexander G. Bell, Op District Op Columbia And Sumner Taintee Op Wateetown Massachusetts ; Beli // American Bell Telephone Company.
PDF File 235199.pdf	1.90 MB	Shaun Ewing	Dec 07, 1880 00:00	No labels	US-235199-A // Apparatus for Signaling and Communicating, Called "photophone." // Alexander G. Bell, Of District Op Columbia // American Bell Telephone Company, Of Boston, Mass.	View
Version 1 (current)	1.90 MB	Shaun Ewing	Dec 07, 1880 00:00		US-235199-A // Apparatus for Signaling and Communicating, Called "photophone." // Alexander G. Bell, Of District Op Columbia // American Bell Telephone Company, Of Boston, Mass.
PDF File 232734.pdf	231 kB	Shaun Ewing	Sept 28, 1880 00:00	No labels	US-232734-A // Microphone. // Joseph P. Liveemoee, Of Massachusetts // American Bell Telephone Company.	View
Version 1 (current)	231 kB	Shaun Ewing	Sept 28, 1880 00:00		US-232734-A // Microphone. // Joseph P. Liveemoee, Of Massachusetts // American Bell Telephone Company.

Content

Space Tools