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US Patent: 12,234
Bench plane
Patentee:
William C. Hopper - Pittsburgh, PA

USPTO Classifications:
30/490, 83/616, 83/698.21, 83/699.41

Tool Categories:
woodworking tools : planes : bench planes

Assignees:
None

Manufacturer:
William C. Hopper - Pittsburgh, PA
Ohio Tool Company - Columbus, OH

Witnesses:
William N. Howard
N. B. Kenaston

Patent Dates:
Granted: Jan. 16, 1855

Patent Pictures:
A rare transitional plane by William C. Hopper with patented throat mechanism. Image courtesy and (C) Martin J. Donnely.
USPTO pdf tiff
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EAIA Chronicle article on the Hopper Patent Plane
Description:
Wooden bench plane with adjustable mouth. The wedge goes underneath the cutter rather than on top.

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