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Patent number:
Patent Date:
US Patent: 132,763
Improvement in Watchmakers' Lathes and Chucks
Patentee:
Caleb Hopkins (
exact
or
similar
names) - Philadelphia, PA
USPTO Classifications:
279/8
,
82/116
,
82/137
Tool Categories:
metalworking machines
:
metal lathes
:
watchmakers lathes
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
T. L. Borsch
Charles N. Dunham
Patent Dates:
Granted:
Nov. 05, 1872
Antedated:
Nov. 02, 1872
Patent Pictures:
USPTO
(New site tip)
Google Patents
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