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US Patent: 667,264
Protractor
Patentee:
Frank Arther Tibbals (exact or similar names) - Lynn, MA

USPTO Classifications:
403/82, 403/84

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
A. G. Heymun
Wiliam H. Bates
Alice J. Murray
Frederick K. Daggett
Patent Dates:
Applied: Jun. 14, 1900
Granted: Feb. 05, 1901

Patent Pictures:
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Report data errors or omissions to steward Joel Havens
Description:
Herbert W. F. Jenner - patent attorney

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