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US Patent: 2,453
Machine for Making Screws
Patentees:
Lorenzo D. Walter - Fort Plain, Montgomery County, NY
Jacob Walter - Springfield, Otsego County, NY

USPTO Classifications:
470/69, 59/15

Tool Categories:
metalworking machines : screw machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Feb. 07, 1842

Patent Pictures:
USPTO pdf tiff
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