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US Patent: 564,549
Protractor
Patentee:
Wallace S. Ayres (exact or similar names) - Hazleton, PA

USPTO Classifications:
33/403

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
J. B. Hutchinson
J. E. Anderson
Patent Dates:
Applied: May 17, 1895
Granted: Jul. 21, 1896

Patent Pictures:
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