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Patent number:
Patent Date:
US Patent: 345,978
Proportional Caliper
Patentee:
Walter E. Lombard (
exact
or
similar
names) - Somerville, MA
USPTO Classifications:
33/558.02
Tool Categories:
layout tools
:
calipers
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
N. C. Lombard
Robert B. Edes
Patent Dates:
Applied:
Apr. 19, 1886
Granted:
Jul. 20, 1886
Patent Pictures:
USPTO
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Google Patents
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