Title:
RADIATION SENSITIVE PAPER SECURITY VALIDATION APPARATUS
United States Patent 3457421


Inventors:
Bayha, Jack E.
Application Number:
US3457421DA
Publication Date:
07/22/1969
Filing Date:
02/24/1966
Assignee:
TRANSMARINE CORP
Primary Class:
Other Classes:
356/71, 356/239.1
International Classes:
G07D7/00; (IPC1-7): G01N21/32; G01N21/30; H01J39/12
View Patent Images: