Patent:US2044978

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Patent:US 2044978
Title:Calculating Machine
Date:23.06.1936
Place:Oakland (CA), USA
Country:USA
Person:Avery, Harold (P) and Lerch, Gustav (P)
Company:Marchant (P) Calculating Machine Company
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 US2044978 (http://v3.espacenet.com/textdoc?DB=EPODOC&F=0&IDX=US2044978) (espacenet),  US2044978 (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=2044978.PN.&OS=PN/2044978&RS=PN/2044978) (uspto)


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