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Patent number:
Patent Date:
US Patent: 142,694
Improvement in boring-mills
Patentee:
Francis E. Hahn (
exact
or
similar
names) - Philadelphia, PA
USPTO Classifications:
408/69
,
82/124
Tool Categories:
metalworking machines
:
drilling and boring
:
vertical boring mills
Assignees:
Frederick B. Miles
- Philadelphia, PA
Oscar C. Ferris
- Philadelphia, PA
Manufacturer:
Ferris & Miles
- Philadelphia, PA
Witnesses:
Hubert Howson
William A. Steel
Patent Dates:
Applied:
Aug. 04, 1873
Granted:
Sep. 09, 1873
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Ferris & Miles
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