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Patent number:
Patent Date:
US Patent: 6,305
Machine for regulating the twist and diameter of screw-augers
Patentees:
Lucius B. Smith (
exact
or
similar
names) - Meriden, CT
Nathaniel C. Sanford (
exact
or
similar
names) - Meriden, CT
USPTO Classifications:
72/371
,
72/469
,
72/88
,
76/108.6
Tool Categories:
woodworking machines
:
specialty woodworking machines
:
tool making machines
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Benajah Andrews
Catharine J. Helsey
Patent Dates:
Granted:
Apr. 10, 1849
Patent Pictures:
USPTO
(New site tip)
Google Patents
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