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US Patent: 68,108
Improvement in clutch-shippers
Patentee:
Frank J. Plummer - Worcester, MA

USPTO Classifications:
192/93R

Tool Categories:
industrial machines : industrial machine mechanisms : industrial machine clutches

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

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

Witnesses:
D. L. Miller
Thomas H. Dodge

Patent Dates:
Granted: Aug. 27, 1867

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

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