[Main Page]

Rechnerlexikon

Die große Enzyklopädie des mechanischen Rechnens

3.227.208.153 | 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:US2727689


Patent:US 2727689
Title:Ten Digit Keyboard for Calculating Machine
Date:20.12.1955
Place:
Country:USA
Person:Heindorff, H. (P)
Company:Brunsviga (P)
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2727689 (espacenet),  US2727689 (uspto)


Enlarge

Aus der Patentschrift US2727689