[Main Page]

Rechnerlexikon

Die große Enzyklopädie des mechanischen Rechnens

54.209.227.199 | Log in | Help

  DE  EN  FR  IT 
Main Page
All pages
Recent changes

Printable version
Discuss article

article
image
patent



Special pages
Pfeil.gif Patents  Pfeil.gif USA  

Patent:US2442428


Patent:US 2442428
Title:Calculating Device
Date:01.06.1948
Place:
Country:USA
Person:Mumma Robert E
Company:NCR (P)
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2442428 (espacenet),  US2442428 (uspto)


Enlarge

Aus der Patentschrift US2442428