Photosensitive currency testing device
United States Patent 3109100
Inventors:
Gecewicz, Norbert A.
Publication Date:
10/29/1963
Assignee:
AUTOMATIC CANTEEN CO
Other Classes:
194/207, 250/215, 250/208.400, 209/534
International Classes:
G07D7/00
US Patent References:
| 2967452 | Currency testing and selecting device | | | |