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Patent number:
Patent Date:
US Patent: 721,379
Calipers or Dividers
Patentee:
Nathan E. Martin (
exact
or
similar
names) - Greenfield, MA
USPTO Classifications:
33/558.1
Tool Categories:
layout tools
:
calipers
layout tools
:
compasses
:
dividers
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
C. Midday
Edward L. Reed
Burt H. Winn
Lyman W. Griswold
Patent Dates:
Applied:
Apr. 26, 1902
Granted:
Feb. 24, 1903
Patent Pictures:
USPTO
(New site tip)
Google Patents
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