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Patent number:
Patent Date:
US Patent: 307,710
Drilling-machine
Patentee:
Ferdinand J. Dubrul (
exact
or
similar
names) - Columbus, OH
USPTO Classifications:
408/98
,
409/219
,
74/625
,
81/34
Tool Categories:
metalworking machines
:
drilling and boring
:
drill presses
woodworking machines
:
wood drilling and boring
:
drill presses
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Henry Olnhausen
Peter Herman
Patent Dates:
Applied:
Mar. 07, 1884
Granted:
Nov. 04, 1884
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
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