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Patent number:
Patent Date:
US Patent: 376,838
Drilling Machine
Patentee:
Amos Whitney (
exact
or
similar
names) - Hartford, Hartford County, CT
USPTO Classifications:
269/173
,
269/242
,
408/35
Tool Categories:
metalworking machines
:
drilling and boring
:
center drilling machines
Assignees:
Pratt & Whitney Co.
- Hartford, Hartford County, CT
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Jul. 25, 1887
Granted:
Jan. 24, 1888
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Pratt, Whitney & Co.
Description:
This patent was improved on by patent #
390,108
.
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