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US Patent: 647,522
Optical Gage
Patentee:
William J. Rideout (exact or similar names) - Freeport, IL

USPTO Classifications:
33/200

Tool Categories:
layout tools : special purpose gauges

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
J. H. Vincent
Henry B. Wille
Clarence H. Walker
H. Bernhof

Patent Dates:
Applied: Aug. 28, 1899
Granted: Apr. 17, 1900

Patent Pictures:
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