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US Patent: 846,272
Combined turning-tool and calipers
Patentees:
John A. Olessak (exact or similar names) - Philadelphia, PA
Ray S. Whipple (exact or similar names) - Philadelphia, PA

USPTO Classifications:
142/56, 15/104.012

Tool Categories:
woodworking tools : chisels : turning chisels
layout tools : calipers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Alexander P. Burchell
Charles C. Warwick

Patent Dates:
Granted: Mar. 05, 1907

Patent Pictures:
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