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Patent number:
Patent Date:
US Patent: 259,287
Drop Hammer
Patentee:
Ahijah R. Byrkett (
exact
or
similar
names) - Troy, Miami County, OH
USPTO Classifications:
72/439
Tool Categories:
metalworking machines
:
forging machines
:
drop hammers
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Apr. 23, 1881
Granted:
Jun. 13, 1882
Patent Pictures:
USPTO
(New site tip)
Google Patents
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