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Patent number:
Patent Date:
US Patent: 769,992
Combined Center or Other Square
Patentee:
George M. Engel (
exact
or
similar
names) - Philadelphia, PA
USPTO Classifications:
33/428
Tool Categories:
layout tools
:
special purpose gauges
layout tools
:
squares
:
try squares
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
P. F. Nagle
George L. Croher
Georg Hoffmann
Harry Renninger
Patent Dates:
Applied:
Oct. 27, 1903
Granted:
Sep. 13, 1904
Patent Pictures:
USPTO
(New site tip)
Google Patents
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