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Patent number:
Patent Date:
US Patent: 464,820
Pneumatic Tool for rock-cutting
Patentee:
Daniel Drawbaugh (
exact
or
similar
names) - Eberly's Mills, PA
USPTO Classifications:
173/17
,
173/207
,
91/290
,
91/316
Tool Categories:
Assignees:
Pneumatic & Electric Tool Co.
- Unknown, NJ
Manufacturer:
Not known to have been produced
Witnesses:
F. P. Stephenson
W. M. Hain
Patent Dates:
Applied:
Aug. 27, 1891
Granted:
Dec. 08, 1891
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Daniel Drawbaugh
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