[Main Page]

Rechnerlexikon

Die große Enzyklopädie des mechanischen Rechnens

34.238.190.122 | 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:US2253229


Patent:US 2253229
Title:Calculating Machine
Date:19.08.1941
Place:
Country:USA
Person:Christian, Raymond A. (P)
Company:NCR (P)
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2253229 (espacenet),  US2253229 (uspto)


Enlarge

Aus der Patentschrift US2253229