Title:
Paper test device-removal means
United States Patent 3108692


Inventors:
Patzer, William A.
Application Number:
US73267158A
Publication Date:
10/29/1963
Filing Date:
05/02/1958
Assignee:
AUTOMATIC CANTEEN CO
Primary Class:
Other Classes:
209/588, 250/557
International Classes:
G07D7/00
View Patent Images:
Foreign References:
GB123649A1919-03-06
DE363709C1922-11-13