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US Patent: 52,044
Improvement in Machines for Polishing Wood
Patentee:
Frank Hoffman - West Cambridge, MA

USPTO Classifications:
451/164

Tool Categories:
woodworking machines : sanding machines : scraping machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
R. H. Eddy
F. P. Hale, Jr.

Patent Dates:
Granted: Jan. 16, 1866

Patent Pictures: [ 1 | 2 ]
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Description:
The frame of this machine takes a plane stock with two stationary irons, arranged in such a way that material moved under it will be planed regardless of the direction of travel. The plane and irons can be replaced with a scraper blade assembly.

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