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Patent number:
Patent Date:
US Patent: 582,092
Air-hoist
Patentee:
William H. Ridgway (
exact
or
similar
names) - Coatesville, PA
USPTO Classifications:
92/110
,
92/113
,
92/12
Tool Categories:
material handling
:
hoists, winches, come-alongs
Assignees:
None
Manufacturer:
Craig Ridgway & Son Co.
- Coatesville, PA
Witnesses:
C. Ridgway
J. W. Wingard
Patent Dates:
Applied:
Aug. 28, 1896
Granted:
May 04, 1897
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Craig Ridgway & Son Co.
Description:
Subsequently improved in patent
649,357
.
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