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US Patent: 661,135
Hand-cranked portable auger mortiser
Patentee:
George F. Andrews - Riverside, CA

USPTO Classifications:
144/70, 408/109

Tool Categories:
woodworking machines : human powered machines
woodworking machines : joint making machines : portable timber mortisers
woodworking machines : wood drilling and boring : portable timber mortisers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Nov. 06, 1900

Patent Pictures:
USPTO pdf tiff
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