Patent:US2431696

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Patent:US 2431696
Title:Relay desing calculator
Date:02.12.1947
Place:
Country:USA
Person:William Keister
Company:Bell Telephone Labor Inc
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Keywords:
Link to the patent office:
(without guarantee)
 US2431696 (http://v3.espacenet.com/textdoc?DB=EPODOC&F=0&IDX=US2431696) (espacenet),  US2431696 (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=/netahtml/FPTO/srchnum.htm&r=1&f=G&l=50&s1=2431696.PN.&OS=PN/2431696&RS=PN/2431696) (uspto)


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