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US Patent: 152,364
Improvement in hand-planers
Patentee:
Jonathan P. Grosvenor - Lowell, MA

USPTO Classifications:
144/129

Tool Categories:
woodworking machines : cutter head machines : jointers

Assignees:
None

Manufacturer:
Jonathan P. Grosvenor - Lowell, MA

Witnesses:
John S. Thornton
William Ventz

Patent Dates:
Applied: Mar. 13, 1871
Granted: Jun. 23, 1874

Patent Pictures:
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"Vintage Machinery" entry for J. P. Grosvenor.
Description:
This invention is for the use of an inclined wedge-shaped bed for the infeed table of a jointer. This seems to be the first appearance of a wedge-bed design.

The patent disclaims (i.e., acknowledges the primacy of) Climer and Riley's patent 59,966 and Frank Douglas's patent 105,657.

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