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Patent number:
Patent Date:
US Patent: 390,190
Turret-lock
Patentee:
Francis H. Richards (
exact
or
similar
names) - Hartford, CT
USPTO Classifications:
188/69
,
29/45
,
74/813L
Tool Categories:
metalworking machines
:
metal lathes
:
turret lathes
Assignees:
Francis H. Richards
- Hartford, CT
Pratt & Whitney Co.
- Hartford, CT
Manufacturer:
Pratt & Whitney Co.
- Hartford, CT
Witnesses:
W. M. Ryorkman
Wilbur M. Stone
Patent Dates:
Applied:
Jun. 20, 1888
Granted:
Sep. 25, 1888
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Pratt & Whitney Co.
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