Name Size Creator Creation Date Labels Comment  
PDF File 1684455.pdf 928 kB Shaun Ewing Sept 18, 1928 00:00
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US-1684455-A // Multiplex carrier-current signaling // Nyquist Harry // American Telephone & Telegraph
PDF File 1685145.pdf 305 kB Shaun Ewing Sept 25, 1928 00:00
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US-1685145-A // Hook // Bartenbach Herman ; Freeman Albert E. // American Telephone & Telegraph
PDF File 1685154.pdf 200 kB Shaun Ewing Sept 25, 1928 00:00
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US-1685154-A // Lock // Edwards William H. // American Telephone & Telegraph
PDF File 1685161.pdf 331 kB Shaun Ewing Sept 25, 1928 00:00
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US-1685161-A // Multiwinding discharge balance coil // Honaman Richard K. // American Telephone & Telegraph
PDF File 1685801.pdf 220 kB Shaun Ewing Oct 02, 1928 00:00
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US-1685801-A // Current-controlling device // Ballard William R. // American Telephone & Telegraph
PDF File 1685835.pdf 671 kB Shaun Ewing Oct 02, 1928 00:00
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US-1685835-A // Program-selecting arrangement // Bascom Henry M. ; Arnold Oscar M. ; Pentland Robert L. // American Telephone & Telegraph
PDF File 1685847.pdf 359 kB Shaun Ewing Oct 02, 1928 00:00
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US-1685847-A // Test clip // Huntington Herbert // American Telephone & Telegraph
PDF File 1685913.pdf 1.21 MB Shaun Ewing Oct 02, 1928 00:00
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US-1685913-A // Recording and reproducing of sound waves // Espenschied Lloyd // American Telephone & Telegraph
PDF File 1686552.pdf 611 kB Shaun Ewing Oct 09, 1928 00:00
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US-1686552-A // Stabilization of circuit output // Fairchild Frank E. // American Telephone & Telegraph
PDF File 1686570.pdf 302 kB Shaun Ewing Oct 09, 1928 00:00
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US-1686570-A // Equipotential cathode vacuum tube // Ohl Russell S. // American Telephone & Telegraph
PDF File 1686585.pdf 416 kB Shaun Ewing Oct 09, 1928 00:00
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US-1686585-A // Telegraph cipher system // Vernam Gilbert S. // American Telephone & Telegraph
PDF File 1687489.pdf 181 kB Shaun Ewing Oct 16, 1928 00:00
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US-1687489-A // Apparatus and method for electrical transmission of pictures // Branson David E. // American Telephone & Telegraph
PDF File 1687495.pdf 447 kB Shaun Ewing Oct 16, 1928 00:00
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US-1687495-A // Insulator // Gordon Chester S. ; Lowe James T. // American Telephone & Telegraph
PDF File 1687535.pdf 701 kB Shaun Ewing Oct 16, 1928 00:00
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US-1687535-A // Reduction of losses in insulators, pins, and cross arms // Affel Herman A. ; Green Estill I. // American Telephone & Telegraph
PDF File 1688292.pdf 417 kB Shaun Ewing Oct 16, 1928 00:00
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US-1688292-A // System of modulating carrier currents // Weaver Allan // American Telephone & Telegraph
PDF File 1688451.pdf 630 kB Shaun Ewing Oct 23, 1928 00:00
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US-1688451-A // Telephone signaling system // Demarest Charles S. ; Loynes Owen H. // American Telephone & Telegraph
PDF File 1688452.pdf 429 kB Shaun Ewing Oct 23, 1928 00:00
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US-1688452-A // Telephone signaling system // Demarest Charles S. ; Loynes Owen H. // American Telephone & Telegraph
PDF File 1688453.pdf 610 kB Shaun Ewing Oct 23, 1928 00:00
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US-1688453-A // Telephone signaling system // Demarest Charles S. ; Loynes Owen H. // American Telephone & Telegraph
PDF File 1688454.pdf 521 kB Shaun Ewing Oct 23, 1928 00:00
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US-1688454-A // Telephone signaling system // Demarest Charles S. ; Loynes Owen H. // American Telephone & Telegraph
PDF File 1688455.pdf 717 kB Shaun Ewing Oct 23, 1928 00:00
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US-1688455-A // Telephone signaling system // Demarest Charles S. ; Loynes Owen H. // American Telephone & Telegraph
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