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US Patent: 502,906
Plane
Patentee:
Louis Hardt - Yuba City, CA

USPTO Classifications:
30/490

Tool Categories:
woodworking tools : planes : chamfer planes
woodworking tools : planes : plane adjustment mechanisms : plane throat adjustments

Assignees:
None

Manufacturer:
Unknown

Witnesses:
Wm. F. Booth
H. A. Schultze

Patent Dates:
Applied: Nov. 03, 1892
Granted: Aug. 08, 1893

Patent Pictures: [ 1 | 2 ]
USPTO pdf tiff
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Description:
Known example (pic 2) sold by Martin J. Donnelly and described as "A rare "Hardt patent" smoothing plane by Louis J. Hardt, Yuba City, California. patented August 8, 1893."

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