Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 12,384
Spirit Level
Patentee:
Hampton W. Evans - Philadelphia, PA

USPTO Classifications:
33/388

Tool Categories:
layout tools : levels : inclinometers
layout tools : levels : level adjustments

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
John P. Cheston
W. H. McNamee

Patent Dates:
Granted: Feb. 13, 1855

Patent Pictures:
USPTO pdf tiff
Google Patents
Report data errors or omissions
Description:
This is a fairly standard inclinometer, with a clever (and complicated) spring-loaded retainer to hold the level vial in the proper position.

Copyright © 2002-2017 - DATAMP