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Patent number:
Patent Date:
US Patent: 851,742
Screw Machine
Patentee:
William H. Gates (
exact
or
similar
names) - Norwich, New London County, CT
USPTO Classifications:
29/55
,
82/138
Tool Categories:
metalworking machines
:
screw machines
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Apr. 08, 1903
Granted:
Apr. 30, 1907
Patent Pictures:
USPTO
(New site tip)
Google Patents
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