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Patent number:
Patent Date:
US Patent: 101,477
Improvement in Combined Square, Protractor, Level, & c.
Patentee:
J. A. Littlefield (
exact
or
similar
names) - Randolph, MA
USPTO Classifications:
33/342
,
33/343
,
33/495
Tool Categories:
layout tools
:
squares
layout tools
:
bevels
layout tools
:
levels
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Frank Morton
N. E. Buck
Patent Dates:
Applied:
Jul. 27, 1869
Granted:
Apr. 05, 1870
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Russ Allen.
Description:
Identified as a compound tool adapted to machinist use in planing and finishing nuts, &c.
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