Name Size Creator Creation Date Labels Comment  
PDF File 2231962.pdf 897 kB Shaun Ewing Feb 18, 1941 00:00
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US-2231962-A // Means for suspending aerial cables // John Everett St. // Bell Telephone Labor Inc
PDF File 2232155.pdf 1.44 MB Shaun Ewing Feb 18, 1941 00:00
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US-2232155-A // Printing telegraph apparatus // Watson Edward F. // Bell Telephone Labor Inc
PDF File 2232179.pdf 1.33 MB Shaun Ewing Feb 18, 1941 00:00
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US-2232179-A // Transmission of guided waves // King Archie P. // Bell Telephone Labor Inc
PDF File 2232362.pdf 806 kB Shaun Ewing Feb 18, 1941 00:00
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US-2232362-A // Selective signaling system // Bellows Brian C. ; Grenell Arthur F. // Bell Telephone Labor Inc
PDF File 2232371.pdf 6.27 MB Shaun Ewing Feb 18, 1941 00:00
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US-2232371-A // Telephone system // Dehn Joseph W. ; Myers Oscar // Bell Telephone Labor Inc
PDF File 2232375.pdf 290 kB Shaun Ewing Feb 18, 1941 00:00
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US-2232375-A // Motor fan mounting // Eliason Osear C. ; Gent Edgar W. // Bell Telephone Labor Inc
PDF File 2232398.pdf 789 kB Shaun Ewing Feb 18, 1941 00:00
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US-2232398-A // Telephone substation circuit // Lundstrom Alexis A. // Bell Telephone Labor Inc
PDF File 2232642.pdf 1.40 MB Shaun Ewing Feb 18, 1941 00:00
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US-2232642-A // Loading system // Shaw Thomas // Bell Telephone Labor Inc
PDF File 2232779.pdf 150 kB Shaun Ewing Feb 25, 1941 00:00
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US-2232779-A // Method for testing bone conduction // Fletcher Harvey // Bell Telephone Labor Inc
PDF File 2232792.pdf 941 kB Shaun Ewing Feb 25, 1941 00:00
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US-2232792-A // Method of and apparatus for measuring impedances // Levin Samuel A. // Bell Telephone Labor Inc
PDF File 2232801.pdf 871 kB Shaun Ewing Feb 25, 1941 00:00
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US-2232801-A // Signaling system // Ressler Ralph E. // Bell Telephone Labor Inc
PDF File 2232858.pdf 645 kB Shaun Ewing Feb 25, 1941 00:00
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US-2232858-A // Frequency meter // Lane Richard F. // Bell Telephone Labor Inc
PDF File 2232866.pdf 704 kB Shaun Ewing Feb 25, 1941 00:00
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US-2232866-A // Signaling system // Pruden Harold M. // Bell Telephone Labor Inc
PDF File 2233056.pdf 842 kB Shaun Ewing Feb 25, 1941 00:00
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US-2233056-A // Teletypewriter switching system // Large Wayne V. K. ; Singer Fred J. ; White Charles // Bell Telephone Labor Inc
PDF File 2233061.pdf 883 kB Shaun Ewing Feb 25, 1941 00:00
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US-2233061-A // Control of distortion // Peterson Eugene // Bell Telephone Labor Inc
PDF File 2233107.pdf 589 kB Shaun Ewing Feb 25, 1941 00:00
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US-2233107-A // Wire guide and terminal connector // Miller Victor F. // Bell Telephone Labor Inc
PDF File 2233282.pdf 1.42 MB Shaun Ewing Feb 25, 1941 00:00
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US-2233282-A // Telephone system // Buchanan Russell B. ; Koechling Charles D. // Bell Telephone Labor Inc
PDF File 2233384.pdf 843 kB Shaun Ewing Feb 25, 1941 00:00
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US-2233384-A // Radio receiver // Feldman Carl B. H. // Bell Telephone Labor Inc
PDF File 2233473.pdf 514 kB Shaun Ewing Mar 04, 1941 00:00
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US-2233473-A // Reduction of modulation // Dixon John T. // Bell Telephone Labor Inc
PDF File 2233487.pdf 889 kB Shaun Ewing Mar 04, 1941 00:00
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US-2233487-A // Gain control circuits // Robertson Donald D. // Bell Telephone Labor Inc
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