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US Patent: 7,557
Friction-clutch
Patentee:
Nelson Barlow - St. Louis, MO

USPTO Classifications:
192/32, 192/94

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

Assignees:
None

Manufacturer:
Nelson Barlow - Newark, NJ

Witnesses:
John C. Powell
Joseph Powell

Patent Dates:
Granted: Aug. 13, 1850

Patent Pictures:
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"Vintage Machinery" entry for Nelson Barlow

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