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Patent number:
Patent Date:
US Patent: 167,165
Improvement in die-stocks
Patentee:
John J. Grant (
exact
or
similar
names) - Hartford, CT
USPTO Classifications:
408/215
,
408/231
,
470/207
Tool Categories:
wrenches
:
tap wrenches and die stocks
Assignees:
Pratt & Whitney Co.
- Hartford, CT
Manufacturer:
Pratt, Whitney & Co.
- Hartford, CT
Witnesses:
Theodore G. Ellis
Wendell R. Curtis
Patent Dates:
Applied:
Jun. 04, 1875
Granted:
Aug. 31, 1875
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Stan Schulz
"Vintage Machinery" entry for Pratt & Whitney Co.
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