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US Patent: 239,933
Friction-clutch
Patentee:
Thomas F. Carver - Worcester, MA

USPTO Classifications:
192/80

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

Assignees:
Thomas F. Carver - Worcester, MA
Michael F. McMahon - Worcester, MA

Manufacturer:
McMahon & Carver - Worcester, MA

Witnesses:
Charles L. Redding
Albert A. Barker

Patent Dates:
Applied: Feb. 26, 1881
Granted: Apr. 05, 1881

Patent Pictures: [ 1 | 2 | 3 | 4 ]
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"Vintage Machinery" entry for McMahon & Carver

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