LIGHT AND PHOTOCELL UNIT FOR SORTING APPARATUS
United States Patent 3536927
US Patent References:
Test means for paper and currency
- - 3122227
Method and apparatus for discriminating between desired and undesired documents
- - 3220549
METHOD AND APPARATUS FOR VALIDATING DOCUMENTS BY SPECTRAL ANALYSIS OF LIGHT REFLECTED THEREFROM
- - 3480785
Test means for paper and currency
- - 3122227
Method and apparatus for discriminating between desired and undesired documents
- - 3220549
METHOD AND APPARATUS FOR VALIDATING DOCUMENTS BY SPECTRAL ANALYSIS OF LIGHT REFLECTED THEREFROM
- - 3480785
Inventors:
Mink, William H.
Publication Date:
10/27/1970
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Assignee:
SCIENT ADVANCES INC
Primary Class:
Other Classes:
359/436, 356/71, 250/556, 359/889
International Classes:
B07C5/342; G01N21/25; G06K9/06; H01J39/08; B07C5/342