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Patent number:
Patent Date:
US Patent: 743,490
Ellipse or Circle Compass
Patentee:
John W. Griffith (
exact
or
similar
names) - San Francisco, CA
USPTO Classifications:
33/30.5
Tool Categories:
layout tools
:
compasses
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Bearthune Larsen
Bessie Gorfinkel
Francis M. Wright
Patent Dates:
Applied:
May 29, 1903
Granted:
Nov. 10, 1903
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
Description:
Francis M. Wright - patent attorney
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