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Patent number:
Patent Date:
US Patent: 575,538
Drill and Tap Machine
Patentee:
William Williamson (
exact
or
similar
names) - Saginaw, Saginaw County, MI
USPTO Classifications:
144/84
,
408/53
Tool Categories:
metalworking machines
:
drilling and boring
:
drill presses
metalworking machines
:
drilling and boring
:
tapping machines
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Apr. 11, 1896
Granted:
Jan. 19, 1897
Patent Pictures:
USPTO
(New site tip)
Google Patents
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