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Patent number:
Patent Date:
US Patent: 472,531
Protractor
Patentee:
Henry R. Eshelman (
exact
or
similar
names) - Reading, Berks County, PA
USPTO Classifications:
33/388
Tool Categories:
layout tools
:
protractors
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Feb. 02, 1892
Granted:
Apr. 12, 1892
Patent Pictures:
USPTO
(New site tip)
Google Patents
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