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US Patent: 50,378
Improvement in Bench-Planes
Patentee:
George Mullear - San Francisco, CA

USPTO Classifications:
30/490

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
C. W. M. Smith
H. Sakeman

Patent Dates:
Granted: Oct. 10, 1865

Patent Pictures:
USPTO pdf tiff
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Description:
This is a combination cutter fastener and throat adjuster. There is a long screw that runs from the heel to the mouth and connects to a block attached to the cutter. The block serves as an adjustable mouth and a chipbreaker.

Mullear later patented an improvement for the block 55207. Note the differeces in the spelling of his name.

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