Name Size Creator Creation Date Labels Comment  
PDF File 1574780.pdf 708 kB Shaun Ewing Mar 02, 1926 00:00
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US-1574780-A // Means for and method of modulation // Affel Herman A. // American Telephone & Telegraph
PDF File 1574779.pdf 428 kB Shaun Ewing Mar 02, 1926 00:00
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US-1574779-A // Translating circuits // Affel Herman A. // American Telephone & Telegraph
PDF File 1573907.pdf 5.21 MB Shaun Ewing Feb 23, 1926 00:00
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US-1573907-A // Telephone-exchange system // Blauvelt William G. // American Telephone & Telegraph
PDF File 1573891.pdf 451 kB Shaun Ewing Feb 23, 1926 00:00
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US-1573891-A // Gain-controlling circuits // Wright Sumner B. ; Schott John T. // American Telephone & Telegraph
PDF File 1573801.pdf 372 kB Shaun Ewing Feb 23, 1926 00:00
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US-1573801-A // Trouble-alarm system for radio receiving sets // Bown Ralph // American Telephone & Telegraph
PDF File 1573794.pdf 806 kB Shaun Ewing Feb 23, 1926 00:00
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US-1573794-A // Telephone-exchange system // Bailey Rand S. // American Telephone & Telegraph
PDF File 1573282.pdf 166 kB Shaun Ewing Feb 16, 1926 00:00
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US-1573282-A // Thermionic modulator // Stone John Stone // American Telephone & Telegraph
PDF File 1573068.pdf 270 kB Shaun Ewing Feb 16, 1926 00:00
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US-1573068-A // Voltage-limiting device // Honaman Richard K. // American Telephone & Telegraph
PDF File 1572992.pdf 378 kB Shaun Ewing Feb 16, 1926 00:00
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US-1572992-A // Adjustable electrical network // Crisson George ; Glezen Lee L. // American Telephone & Telegraph
PDF File 1572977.pdf 424 kB Shaun Ewing Feb 16, 1926 00:00
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US-1572977-A // Telephone system // Nostitz Erich Von // American Telephone & Telegraph
PDF File 1572785.pdf 550 kB Shaun Ewing Feb 09, 1926 00:00
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US-1572785-A // Telegraph circuit // Fox Francis H. // American Telephone & Telegraph
PDF File 1572757.pdf 899 kB Shaun Ewing Feb 09, 1926 00:00
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US-1572757-A // Multiplex signaling system // Affel Herman A. // American Telephone & Telegraph
PDF File 1572010.pdf 489 kB Shaun Ewing Feb 09, 1926 00:00
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US-1572010-A // Detector circuit // Herman Joseph // American Telephone & Telegraph
PDF File 1571991.pdf 1.07 MB Shaun Ewing Feb 09, 1926 00:00
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US-1571991-A // Telephone ringing system // Bailey Rand S. // American Telephone & Telegraph
PDF File 1571513.pdf 140 kB Shaun Ewing Feb 02, 1926 00:00
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US-1571513-A // Telephone substation circuits // Edwards William H. // American Telephone & Telegraph
PDF File 1570772.pdf 474 kB Shaun Ewing Jan 26, 1926 00:00
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US-1570772-A // Reduction of distortion in multiplex repeaters // Nyquist Harry // American Telephone & Telegraph
PDF File 1570771.pdf 1.62 MB Shaun Ewing Jan 26, 1926 00:00
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US-1570771-A // Means for and method of reducing interference // Nyquist Harry // American Telephone & Telegraph
PDF File 1570770.pdf 653 kB Shaun Ewing Jan 26, 1926 00:00
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US-1570770-A // Means for and method of reducing interference // Nyquist Harry // American Telephone & Telegraph
PDF File 1570755.pdf 326 kB Shaun Ewing Jan 26, 1926 00:00
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US-1570755-A // Radio ringing system // Loynes Owen H. // American Telephone & Telegraph
PDF File 1570741.pdf 1.06 MB Shaun Ewing Jan 26, 1926 00:00
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US-1570741-A // Testing system for machine-switching circuits // Harden William H. ; Graefenecker Michael A. // American Telephone & Telegraph
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