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US Patent: 68,108
Improvement in clutch-shippers
Patentee: Frank J. Plummer (exact or similar names) - 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 (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for R. Ball & Co.

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