[Main Page]

Rechnerlexikon

Die große Enzyklopädie des mechanischen Rechnens

3.141.46.110 | 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:US1439936


Patent:US 1439936
Title:Calculator
Date:26.12.1922
Place:
Country:USA
Person:W. L. Wyckoff
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US1439936 (espacenet),  US1439936 (uspto)


Enlarge

Aus der Patentschrift US1439936