Title:
Silhouette coin grader
United States Patent 3349612
US Patent References:
/1198053.html
- - 1198053
Testing of accuracy of workpiece dimensions
- - 2202683
Inspector's checking overlay
- - 2720028
/1198053.html
- - 1198053
Testing of accuracy of workpiece dimensions
- - 2202683
Inspector's checking overlay
- - 2720028
Inventors:
Sherman, Charles I.
Publication Date:
10/31/1967
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Export Citation:
Assignee:
Perrine, Cutler Ridge Bank
Primary Class:
Other Classes:
33/542
International Classes:
G01N3/56; G07D5/00; G07D5/08