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Patent number:
Patent Date:
US Patent: 305,165
Drop-hammer
Patentee:
John H. Elward (
exact
or
similar
names) - Stillwater, MN
USPTO Classifications:
72/436
,
72/439
Tool Categories:
metalworking machines
:
forging machines
:
drop hammers
Assignees:
D. M. Sabin
- Stillwater, MN
John H. Elward
- Stillwater, MN
Manufacturer:
Northwestern Mfg. & Car Co.
- Stillwater, MN
Witnesses:
Unknown
Patent Dates:
Applied:
Jan. 16, 1882
Granted:
Sep. 16, 1884
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Northwestern Mfg. & Car Co.
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