Selective vending machine
United States Patent 2178000

Inventors:
Siehrs, Arthur E.
Publication Date:
10/31/1939
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Assignee:
Siehrs, Arthur E.
Primary Class:
221/13
Other Classes:
221/277, 221/258, 221/121, 221/129
International Classes:
G07F11/54; G07F11/46