Authentification device and method of making same
United States Patent 2129364

Inventors:
Simons, Francis L.
Weiss, Mark W.
Publication Date:
09/06/1938
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Assignee:
GEORGE LA MONTE & SON
Primary Class:
283/97
Other Classes:
283/114, 283/81, 283/101, 40/630
International Classes:
B44F1/12