Means for analyzing motion
United States Patent 2223849

Inventors:
Fogler, Ben B.
Grier, Herbert E.
Publication Date:
12/03/1940
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Assignee:
LITTLE INC A
Primary Class:
283/115
Other Classes:
33/17R, 356/397, 352/39, 434/252, 352/46, 352/84
International Classes:
G01C1/02; G01P3/38; G01C1/00; G01P3/36