Name Size Creator Creation Date Labels Comment  
PDF File 1719916.pdf 296 kB Shaun Ewing Jul 09, 1929 00:00
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US-1719916-A // Picture-transmitting system // Watson Edward F. // American Telephone & Telegraph
PDF File 1719896.pdf 329 kB Shaun Ewing Jul 09, 1929 00:00
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US-1719896-A // Reduction of fading of radiosignals // Martin De Loss K. // American Telephone & Telegraph
PDF File 1719845.pdf 576 kB Shaun Ewing Jul 09, 1929 00:00
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US-1719845-A // Reduction of fading of radiosignals // Martin De Loss K. // American Telephone & Telegraph
PDF File 1719052.pdf 396 kB Shaun Ewing Jul 02, 1929 00:00
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US-1719052-A // Single-side-band carrier system // Green Estill I. // American Telephone & Telegraph
PDF File 1719047.pdf 604 kB Shaun Ewing Jul 02, 1929 00:00
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US-1719047-A // Volume-range-control system // Clark Alva B. ; Crisson George // American Telephone & Telegraph
PDF File 1719041.pdf 773 kB Shaun Ewing Jul 02, 1929 00:00
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US-1719041-A // Carrier-amplitude-control system // Blackwell Otto B. ; Strieby Maurice E. // American Telephone & Telegraph
PDF File 1718301.pdf 298 kB Shaun Ewing Jun 25, 1929 00:00
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US-1718301-A // Operator's telephone circuit // Nelson Stanley F. // American Telephone & Telegraph
PDF File 1718291.pdf 213 kB Shaun Ewing Jun 25, 1929 00:00
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US-1718291-A // Buckle // Guenther Raymond // American Telephone & Telegraph
PDF File 1718280.pdf 323 kB Shaun Ewing Jun 25, 1929 00:00
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US-1718280-A // Spring-jack connection // Edwards Paul G. // American Telephone & Telegraph
PDF File 1717475.pdf 304 kB Shaun Ewing Jun 18, 1929 00:00
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US-1717475-A // Alternating-current relay // Thompson Elmer O. // American Telephone & Telegraph
PDF File 1717410.pdf 337 kB Shaun Ewing Jun 18, 1929 00:00
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US-1717410-A // Attenuation compensator // Roberts Leland C. // American Telephone & Telegraph
PDF File 1717400.pdf 388 kB Shaun Ewing Jun 18, 1929 00:00
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US-1717400-A // Phase-shifting network // Nyquist Harry // American Telephone & Telegraph
PDF File 1717074.pdf 683 kB Shaun Ewing Jun 11, 1929 00:00
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US-1717074-A // Telephone-exchange maintenance system // Taplin Carleton V. ; Allen Louis M. ; Bertels Arnold S. // American Telephone & Telegraph ; Bell Telephone Labor Inc
PDF File 1716438.pdf 604 kB Shaun Ewing Jun 11, 1929 00:00
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US-1716438-A // Testing system // Gannett Danforth K. // American Telephone & Telegraph
PDF File 1716437.pdf 387 kB Shaun Ewing Jun 11, 1929 00:00
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US-1716437-A // Testing system // Gannett Danforth K. // American Telephone & Telegraph
PDF File 1715475.pdf 310 kB Shaun Ewing Jun 04, 1929 00:00
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US-1715475-A // Electrical protective system // Shetzline Roy A. // American Telephone & Telegraph
PDF File 1715433.pdf 647 kB Shaun Ewing Jun 04, 1929 00:00
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US-1715433-A // Antenna array // Stone John Stone // American Telephone & Telegraph
PDF File 1715415.pdf 429 kB Shaun Ewing Jun 04, 1929 00:00
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US-1715415-A // Volume-control system // Hanson Oscar B. ; Crisson George ; Mckown Frederick W. // American Telephone & Telegraph
PDF File 1714567.pdf 281 kB Shaun Ewing May 28, 1929 00:00
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US-1714567-A // Telegraph circuit // Nyquist Harry // American Telephone & Telegraph
PDF File 1714551.pdf 688 kB Shaun Ewing May 28, 1929 00:00
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US-1714551-A // Cable-testing arrangement // Edwards Paul G. ; Herrington Harold W. // American Telephone & Telegraph
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