Name Size Creator Creation Date Labels Comment  
PDF File 1943104.pdf 752 kB Shaun Ewing Jan 09, 1934 00:00
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US-1943104-A // Transmission control in signaling systems // Bjornson Bjorn G. ; Mitchell Doren // American Telephone & Telegraph ; Bell Telephone Labor Inc
PDF File 1942811.pdf 363 kB Shaun Ewing Jan 09, 1934 00:00
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US-1942811-A // Single stroke gong // Green Irving W. // American Telephone & Telegraph
PDF File 1942547.pdf 272 kB Shaun Ewing Jan 09, 1934 00:00
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US-1942547-A // Binder // Gordon Walter A. ; O'Neil Daniel J. // American Telephone & Telegraph
PDF File 1941636.pdf 307 kB Shaun Ewing Jan 02, 1934 00:00
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US-1941636-A // Radioantenna // Stone John Stone // American Telephone & Telegraph
PDF File 1941627.pdf 334 kB Shaun Ewing Jan 02, 1934 00:00
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US-1941627-A // Remote control system // Schramm Fred W. // American Telephone & Telegraph
PDF File 1940780.pdf 284 kB Shaun Ewing Dec 26, 1933 00:00
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US-1940780-A // Insulator for coaxial conductors // Wilson Leon T. // American Telephone & Telegraph
PDF File 1940769.pdf 566 kB Shaun Ewing Dec 26, 1933 00:00
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US-1940769-A // Coupling device // Potter Ralph K. // American Telephone & Telegraph
PDF File 1940764.pdf 1.06 MB Shaun Ewing Dec 26, 1933 00:00
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US-1940764-A // Time sender // Mccann Thomas A. // American Telephone & Telegraph
PDF File 1940370.pdf 1001 kB Shaun Ewing Dec 19, 1933 00:00
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US-1940370-A // Telegraph system // Rea Wilton T. // American Telephone & Telegraph
PDF File 1940181.pdf 211 kB Shaun Ewing Dec 19, 1933 00:00
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US-1940181-A // Vacuum tube circuits // Nyquist Harry // American Telephone & Telegraph
PDF File 1939796.pdf 741 kB Shaun Ewing Dec 19, 1933 00:00
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US-1939796-A // Duct rodding apparatus // Spowart John B. // American Telephone & Telegraph
PDF File 1939613.pdf 511 kB Shaun Ewing Dec 12, 1933 00:00
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US-1939613-A // Printing telegraph system // Watson Edward F. // American Telephone & Telegraph
PDF File 1938742.pdf 463 kB Shaun Ewing Dec 12, 1933 00:00
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US-1938742-A // Gas-filled discharge tube // Demarest Charles Sidney // American Telephone & Telegraph
PDF File 1938741.pdf 236 kB Shaun Ewing Dec 12, 1933 00:00
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US-1938741-A // Gas-filled discharge tube // Demarest Charles Sidney // American Telephone & Telegraph
PDF File 1938732.pdf 615 kB Shaun Ewing Dec 12, 1933 00:00
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US-1938732-A // System for improving the shielding effect of ground wires and shield wires // Vaage Emil Fridstein // American Telephone & Telegraph
PDF File 1937652.pdf 473 kB Shaun Ewing Dec 05, 1933 00:00
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US-1937652-A // Coaxial conductor system // Green Estill I. // American Telephone & Telegraph
PDF File 1937641.pdf 426 kB Shaun Ewing Dec 05, 1933 00:00
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US-1937641-A // Multiway connection for signaling circuits // Crisson George // American Telephone & Telegraph
PDF File 1937640.pdf 325 kB Shaun Ewing Dec 05, 1933 00:00
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US-1937640-A // Means for preventing bias in telegraph systems // Clarke John L. // American Telephone & Telegraph
PDF File 1936713.pdf 372 kB Shaun Ewing Nov 28, 1933 00:00
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US-1936713-A // Winch clutch and brake // Freeman Albert E. ; Livermore William T. // American Telephone & Telegraph
PDF File 1936706.pdf 414 kB Shaun Ewing Nov 28, 1933 00:00
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US-1936706-A // Directionally selective sound receiver // Affel Herman A. // American Telephone & Telegraph
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