Name Size Creator Creation Date Labels Comment  
PDF File 509965.pdf 511 kB Shaun Ewing Dec 05, 1893 00:00
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US-509965-A // Telephonic Transmission. // John S. Stone, Op Massachusetts // The American Bell Telephone Company, Of Same Place.
PDF File 596197.pdf 506 kB Shaun Ewing Dec 28, 1897 00:00
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US-596197-A // Electrical Protective Appliance. // Arthur S. Williams, Of Massachusetts // The American Bell Telephone Company, Op Boston, Massachusetts.
PDF File 256258.pdf 500 kB Shaun Ewing Apr 11, 1882 00:00
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US-256258-A // Telephone-exchange System. // Thomas A. Watson, Op // The American Bell Telephone Company, Op Boston, Massachusetts.
PDF File 552173.pdf 497 kB Shaun Ewing Dec 31, 1895 00:00
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US-552173-A // Electric Telephone. // Stephen D. Field, Of // The American Bell Telephone Company, Op Boston, Massachusetts.
PDF File 540117.pdf 495 kB Shaun Ewing May 28, 1895 00:00
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US-540117-A // Conductor-distributing Frame. // Theodore Spencer, Of // The American Bell Telephone Company, Of Boston, Massachusetts.
PDF File 541148.pdf 494 kB Shaun Ewing Jun 18, 1895 00:00
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US-541148-A // Current-strength Indicator. // Percival G. Burgess, Of Massachusetts // The American Bell Telephone Company, Of Same Place.
PDF File 575653.pdf 494 kB Shaun Ewing Jan 19, 1897 00:00
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US-575653-A // Electrical Condenser. // John C. Lee, Of William R. Westcott Of Cambridge And Ernest C. Robes Of Medford Massachusetts // The American Bell Telephone Company, Of Boston, Massachusetts.
PDF File 530516.pdf 490 kB Shaun Ewing Dec 11, 1894 00:00
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US-530516-A // Suppression of Self-inductive Obstruction In Electromagnetic Apparatus, // Stephen D. Field, Of // The American Bell Telephone Company, Of Boston, Massachusetts.
PDF File 487219.pdf 489 kB Shaun Ewing Nov 29, 1892 00:00
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US-487219-A // Telephone. // Hammond Y. Hayes, Of And Wilton L. Richards Of Malden // The American Bell Telephone Company, Of Boston, Massachusetts.
PDF File 252641.pdf 488 kB Shaun Ewing Jan 24, 1882 00:00
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US-252641-A // Compound Telephone. // George Lee Anders, Op County Of Middlesex England // The American Bell Telephone Company, Of Boston, Massachusetts.
PDF File 654630.pdf 481 kB Shaun Ewing Jul 31, 1900 00:00
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US-654630-A // Radiophony. // Hammond V. Hayes ; Ernest R. Cram // American Bell Telephone Co
PDF File 516982.pdf 481 kB Shaun Ewing Mar 20, 1894 00:00
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US-516982-A // Telephone. // Anthony C. White, Op Massachusetts; Fannie A. White Administratrix Op Anthony C. White Deceased // The American Bell Telephone Company, Of Same Place.
PDF File 487102.pdf 476 kB Shaun Ewing Nov 29, 1892 00:00
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US-487102-A // Development and Distribution of Electricity. // John S. Stone, Of Massachusetts // The American Bell Telephone Company, Of Same Place.
PDF File 620002.pdf 469 kB Shaun Ewing Feb 21, 1899 00:00
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US-620002-A // Switchboard-connecting Cord-circuit. // George K. Thompson, Of Massachusetts // The American Bell Telephone Company, Of Boston, Massachusetts.
PDF File 539170.pdf 462 kB Shaun Ewing May 14, 1895 00:00
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US-539170-A // Magneto Call Apparatus. // Frank B. Cook, Of Illinois // The American Bell Telephone Company, Of Boston, Massachusetts.
PDF File 773472.pdf 461 kB Shaun Ewing Oct 25, 1904 00:00
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US-773472-A // Electric circuit. // George A. Campbell // American Bell Telephone Co
PDF File 507694.pdf 459 kB Shaun Ewing Oct 31, 1893 00:00
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US-507694-A // Telephone-transmitter Circuit and Apparatus. // John S. Stone, Of Massachusetts // The American Bell Telephone Company, Of Same Place.
PDF File 560761.pdf 456 kB Shaun Ewing May 26, 1896 00:00
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US-560761-A // Telephone-circuit. // John S. Stone, Of Massachusetts // The American Bell Telephone Company, Oe Same Place.
PDF File 773372.pdf 455 kB Shaun Ewing Oct 25, 1904 00:00
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US-773372-A // Electric circuit. // George A. Campbell // American Bell Telephone Co
PDF File 619240.pdf 455 kB Shaun Ewing Feb 07, 1899 00:00
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US-619240-A // Toll Counter or Register for Telephonic Circuits. // Geoege K. Thompson, Of Massachusetts // The American Bell Telephone Company, Of Boston, Massachusetts.
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