Patent:US1648733

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Patent:US 1648733
Title:Calculator
Date:08.11.1927
Place:
Country:USA
Person:Vladimir Karapetoff
Company:Gen Electric
Internal Links:Analogrechner
Keywords:
Link to the patent office:
(without guarantee)
 US1648733 (http://v3.espacenet.com/textdoc?DB=EPODOC&F=0&IDX=US1648733) (espacenet),  US1648733 (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=1648733.PN.&OS=PN/1648733&RS=PN/1648733) (uspto)


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