Patent:US1239622

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Patent:US 1239622
Title:Keyboard Adding Machine
Date:11.09.1917
Place:
Country:USA
Person:Rauchwetter, Franz (P)
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US1239622 (http://v3.espacenet.com/textdoc?DB=EPODOC&F=0&IDX=US1239622) (espacenet),  US1239622 (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=1239622.PN.&OS=PN/1239622&RS=PN/1239622) (uspto)


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