Title:
Currency identification device for the blind
United States Patent 3045364
US Patent References:
Apparatus for reading colors
- - 1914937
Identification card and mechanism
- - 2497405
Reading apparatus for the blind
- - 2808661
Apparatus for identifying printed documents and the like as genuine
- - 2827822
Vending machine
- - 2896763
Apparatus for reading colors
- - 1914937
Identification card and mechanism
- - 2497405
Reading apparatus for the blind
- - 2808661
Apparatus for identifying printed documents and the like as genuine
- - 2827822
Vending machine
- - 2896763
Inventors:
Surber, Curtis M.
Publication Date:
07/24/1962
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Export Citation:
Assignee:
AUTOMATIC CANTEEN CO
Primary Class:
Other Classes:
250/237R, 356/71, 273/149P, 340/815.550, 194/207, 235/454, 209/534, 340/825.190
International Classes:
G07D7/00; G09B21/00
US Patent References:
| 2922893 | Document identifying system |