Name Size Creator Creation Date Labels Comment  
PDF File 901687.pdf 668 kB Shaun Ewing Oct 20, 1908 00:00
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US-901687-A // Telephone-transmitter. // Merritt S. Conner // Stromberg Carlson Telephone
PDF File 901686.pdf 1.08 MB Shaun Ewing Oct 20, 1908 00:00
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US-901686-A // Telephone-exchange system. // Merritt S. Conner // Stromberg Carlson Telephone
PDF File 901685.pdf 1.51 MB Shaun Ewing Oct 20, 1908 00:00
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US-901685-A // Telephone-exchange system. // Merritt S. Conner // Stromberg Carlson Telephone
PDF File 901684.pdf 1.94 MB Shaun Ewing Oct 20, 1908 00:00
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US-901684-A // Telephone-exchange system. // Merritt S. Conner // Stromberg Carlson Telephone
PDF File 901683.pdf 1.16 MB Shaun Ewing Oct 20, 1908 00:00
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US-901683-A // Supervisory system. // Merritt S. Conner // Stromberg Carlson Telephone
PDF File 901673.pdf 323 kB Shaun Ewing Oct 20, 1908 00:00
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US-901673-A // Spreading device. // Jules A. Birsfield // Stromberg Carlson Telephone
PDF File 901672.pdf 422 kB Shaun Ewing Oct 20, 1908 00:00
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US-901672-A // Multiple-switchboard jack. // Jules A. Birsfield // Stromberg Carlson Telephone
PDF File 901669.pdf 1.35 MB Shaun Ewing Oct 20, 1908 00:00
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US-901669-A // Multiparty-line telephone-exchange system. // Garrison Babcock // Stromberg Carlson Telephone
PDF File 893125.pdf 944 kB Shaun Ewing Jul 14, 1908 00:00
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US-893125-A // Selective signaling system. // Garrison Babcock // Stromberg Carlson Telephone
PDF File 862713.pdf 754 kB Shaun Ewing Aug 06, 1907 00:00
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US-862713-A // Telephone-exchange system. // Merritt S. Conner // Stromberg Carlson Telephone
PDF File 857621.pdf 638 kB Shaun Ewing Jun 25, 1907 00:00
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US-857621-A // Switching device. // Alexander M. Haubrich // Stromberg Carlson Telephone
PDF File 856260.pdf 516 kB Shaun Ewing Jun 11, 1907 00:00
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US-856260-A // Telephone apparatus. // William Kaisling // Stromberg Carlson Telephone
PDF File 854439.pdf 501 kB Shaun Ewing May 21, 1907 00:00
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US-854439-A // Portable combination telephone set. // Alfred Stromberg // Stromberg Carlson Telephone
PDF File 853337.pdf 878 kB Shaun Ewing May 14, 1907 00:00
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US-853337-A // Breast-transmitter. // Jules A. Birsfield // Stromberg Carlson Telephone
PDF File 853305.pdf 701 kB Shaun Ewing May 14, 1907 00:00
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US-853305-A // Circuit-changing apparatus. // William Kaisling // Stromberg Carlson Telephone
PDF File 853304.pdf 1.36 MB Shaun Ewing May 14, 1907 00:00
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US-853304-A // Telephone-exchange system. // Arthur R. Kahl // Stromberg Carlson Telephone
PDF File 853292.pdf 796 kB Shaun Ewing May 14, 1907 00:00
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US-853292-A // Circuit-changing apparatus. // Jules A. Birsfield // Stromberg Carlson Telephone
PDF File 853291.pdf 1.42 MB Shaun Ewing May 14, 1907 00:00
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US-853291-A // Telephone system. // Garrison Babcock // Stromberg Carlson Telephone
PDF File 853287.pdf 671 kB Shaun Ewing May 14, 1907 00:00
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US-853287-A // Supervisory signaling system. // Harry G. Webster // Stromberg Carlson Telephone
PDF File 848283.pdf 812 kB Shaun Ewing Mar 26, 1907 00:00
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US-848283-A // Switching device. // Jules A. Birdsfield // Stromberg Carlson Telephone
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