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Patent number:
Patent Date:
US Patent: 434,576
Drilling Machine
Patentee:
Horace B. Wyman (
exact
or
similar
names) - Newburyport, Essex County, MA
USPTO Classifications:
173/145
,
408/137
,
74/841
,
74/89.27
,
74/89.31
Tool Categories:
stoneworking
:
stone boring and drilling machines
trade specific
:
miner
Assignees:
Horace B. Wyman
- Newburyport, Essex County, MA
Charles G. Welch
- Osceola Mills, Clearfield County, PA
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
May 16, 1890
Granted:
Aug. 19, 1890
Patent Pictures:
USPTO
(New site tip)
Google Patents
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