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US Patent: 621,177
Protractor
Patentee:
George W. Sykes (exact or similar names) - Mercer, PA

USPTO Classifications:
33/403

Tool Categories:
metalworking tools : machinist tools : measuring tools : protractors
layout tools : protractors

Assignees:
William E. McKelvy - Pittsburgh, PA

Manufacturer:
Not known to have been produced

Witnesses:
Watson Large
C. C. Butterfield
C. M. Brown
W. E. McKelvy

Patent Dates:
Applied: Nov. 19, 1898
Granted: Mar. 14, 1899

Patent Pictures:
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Google Patents
Report data errors or omissions to steward Joel Havens
Description:
O. M. Clarke - patent attorney

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