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US Patent: 193,331
Machine for routing stair stringers
Patentee:
Charles J. Harder - San Francisco, CA

USPTO Classifications:
144/136.1, 144/3.1

Tool Categories:
woodworking machines : cutter head machines : routing machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Jul. 24, 1877

Patent Pictures:
USPTO pdf tiff
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