Name Size Creator Creation Date Labels Comment  
PDF File 1773772.pdf 396 kB Shaun Ewing Aug 26, 1930 00:00
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US-1773772-A // Harmonic suppressor // Berthold Oscar H. // 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 1749023.pdf 395 kB Shaun Ewing Mar 04, 1930 00:00
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US-1749023-A // Meter // Edwards William H. // American Telephone & Telegraph
PDF File 1753231.pdf 394 kB Shaun Ewing Apr 08, 1930 00:00
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US-1753231-A // Meter for transmission testing // Best Fred H. // American Telephone & Telegraph
PDF File 1742291.pdf 394 kB Shaun Ewing Jan 07, 1930 00:00
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US-1742291-A // Selective signaling system // Thompson George K. // American Telephone & Telegraph
PDF File 1751527.pdf 394 kB Shaun Ewing Mar 25, 1930 00:00
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US-1751527-A // Distortionless amplifying system // Nyquist Harry // American Telephone & Telegraph
PDF File 1649863.pdf 394 kB Shaun Ewing Nov 22, 1927 00:00
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US-1649863-A // Cross-fire-neutralizing system // Shanck Roy B. // American Telephone & Telegraph
PDF File 1589406.pdf 394 kB Shaun Ewing Jun 22, 1926 00:00
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US-1589406-A // Ringing arrangement for carrier circuits // Loynes Owen H. ; Ohl Russell S. // American Telephone & Telegraph
PDF File 1679434.pdf 394 kB Shaun Ewing Aug 07, 1928 00:00
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US-1679434-A // Electric wave filter for variable-load circuits // Mccurdy Ralph G. // American Telephone & Telegraph
PDF File 1706490.pdf 394 kB Shaun Ewing Mar 26, 1929 00:00
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US-1706490-A // Carrier-amplitude control in radio systems // Holden William H. T. // American Telephone & Telegraph
PDF File 1680390.pdf 393 kB Shaun Ewing Aug 14, 1928 00:00
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US-1680390-A // Picture-transmitting system // Nyquist Harry // American Telephone & Telegraph
PDF File 1511360.pdf 393 kB Shaun Ewing Oct 14, 1924 00:00
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US-1511360-A // Anti-inductive system // Osborne Harold S. // American Telephone & Telegraph
PDF File 1785818.pdf 393 kB Shaun Ewing Dec 23, 1930 00:00
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US-1785818-A // Telephone system // Peterson George H. ; Rhodes William A. // American Telephone & Telegraph
PDF File 1565555.pdf 391 kB Shaun Ewing Dec 15, 1925 00:00
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US-1565555-A // Arrangement for automatically controlling volume output // Fetter Charles H. // American Telephone & Telegraph
PDF File 1775775.pdf 391 kB Shaun Ewing Sept 16, 1930 00:00
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US-1775775-A // Method of and means for wave retardation // Nyquist Harry // American Telephone & Telegraph
PDF File 1419674.pdf 391 kB Shaun Ewing Jun 13, 1922 00:00
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US-1419674-A // Electrical measuring apparatus // Hitchcock Harry W. // American Telephone & Telegraph
PDF File 1643332.pdf 391 kB Shaun Ewing Sept 27, 1927 00:00
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US-1643332-A // Electrical network // Campbell George A. // American Telephone & Telegraph
PDF File 1590263.pdf 391 kB Shaun Ewing Jun 29, 1926 00:00
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US-1590263-A // Amplifier // Stone John Stone // American Telephone & Telegraph
PDF File 1756130.pdf 391 kB Shaun Ewing Apr 29, 1930 00:00
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US-1756130-A // Oscillation generator // Ohl Russell S. // American Telephone & Telegraph
PDF File 1607673.pdf 390 kB Shaun Ewing Nov 23, 1926 00:00
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US-1607673-A // Telephone-substation circuits // Inglis Alfred H. // American Telephone & Telegraph
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