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US Patent: 406,219
Machine for forming ornamental spiral grooves
Patentee:
Ralph William Jorres - Thomaston, CT

USPTO Classifications:
144/139

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Ernest Miller
Charles W. Laubin

Patent Dates:
Applied: Feb. 06, 1889
Granted: Jul. 02, 1889

Patent Pictures:
USPTO pdf tiff
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