Title:
Card holder
United States Patent 2770898
Inventors:
Henrik, Lutz Harry
William, Greenberger
Publication Date:
11/20/1956
Export Citation:
Assignee:
HOPP PRESS INC
Primary Class:
Other Classes:
40/5
International Classes:
G09F3/20; G09F3/08
View Patent Images:
US Patent References: