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Patent number:
Patent Date:
US Patent: 431,184
Plumb-Level
Patentee:
Reuben Einstein (
exact
or
similar
names) - Meadville, PA
USPTO Classifications:
33/399
Tool Categories:
layout tools
:
levels
:
inclinometers
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Edwin Percy Brown
A. K. Carmichael
Geo. G. Thorpe
G. A. Fauberschmidt
Patent Dates:
Applied:
Apr. 05, 1890
Granted:
Jul. 01, 1890
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Ralph Brendler
Description:
This inclinometer features several elements designed to make it more rugged and less susceptible to going out of alignment when dropped.
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