Patent:US2975971

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Patent:US 2975971
Title:Calc Mach with Digit Keys and Function Control Keys
Date:21.03.1961
Place:
Country:USA
Person:Schenk
Company:Oerlikon (P)
Internal Links:Monroe Mach 1.07
Keywords:
Link to the patent office:
(without guarantee)
 US2975971 (http://v3.espacenet.com/textdoc?DB=EPODOC&F=0&IDX=US2975971) (espacenet),  US2975971 (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=2975971.PN.&OS=PN/2975971&RS=PN/2975971) (uspto)


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