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Patent number:
Patent Date:
US Patent: 756,461
Micrometer Calipers
Patentee:
Hyacinthe O. Borduas (
exact
or
similar
names) - Haverhill, MA
USPTO Classifications:
33/815
,
33/818
Tool Categories:
metalworking tools
:
machinist tools
:
measuring tools
:
micrometers
Assignees:
Theodore L. Provost
- Haverhill, MA
Manufacturer:
Not known to have been produced
Witnesses:
H. B. Davis
Maud M. Piper
Louis H. Harriman
Patent Dates:
Applied:
Jan. 02, 1904
Granted:
Apr. 05, 1904
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
Description:
Noyle & Harriman - patent attorneys
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