[Main Page]

Rechnerlexikon

Die große Enzyklopädie des mechanischen Rechnens

34.204.173.45 | 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:US1086823


Patent:US 1086823
Title:Cryptographic Attachement for Type Writing Machines
Date:10.02.1914
Place:
Country:USA
Person:E. H. Hebern & F. Hoffman
Company:
Internal Links:Chiffriergerät
Keywords:
Link to the patent office:
(without guarantee)
 US1086823 (espacenet),  US1086823 (uspto)


Enlarge

Aus der Patentschrift US1086823