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US Patent: 143,538
Improvement in adjustable ratchet-rods
Patentee:
Edward H. Smith - Worcester, MA

USPTO Classifications:
248/407, 74/575

Tool Categories:
woodworking machines : woodworking machine mechanisms

Assignees:
R. Ball & Co. - Worcester, MA

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Oct. 07, 1873

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for R. Ball & Co.

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