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Patent number:
Patent Date:
US Patent: 141,380
Improvement in machines for shaping piano-keys
Patentee:
Milon Pratt (
exact
or
similar
names) - Deep River, CT
USPTO Classifications:
144/146
Tool Categories:
trade specific
:
music instrument maker
woodworking machines
:
specialty woodworking machines
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
John W. Marvin
S. H. Jennings
Patent Dates:
Applied:
May 23, 1873
Granted:
Jul. 29, 1873
Patent Pictures:
USPTO
(New site tip)
Google Patents
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