HOME


Belgium - Curreently 2 Slide Rule Patents


KEEP ISRM FREE!
Work in Progress - Clickable Thumbnails to PDF files will be added first followed by descriptions

1st Column

BE/BE358569A
Feb 20, 1930
IMPROVEMENTS IN OR RELATING TO COMBINED CALCULATING AND WRITING INSTRUMENTS
Ruxton Multi-Vider Corp. New York.
BE894047A
RECHENBLAADJE
Dhr. Franciscus Cedee
xxxxxxx

2nd Column

xxxxxxx
xxxxxxx
xxxxxxx

3rd Column

xxxxxxx
xxxxxxx
xxxxxxx

Copyright © 2003-2012 International Slide Rule Museum