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US Patent: 17,236
Improvement in couplings for shafting
Patentees:
William Sellers - Philadelphia, PA
Coleman Sellers - Philadelphia, PA

USPTO Classifications:
403/303

Tool Categories:
industrial machines : industrial machine mechanisms : industrial machine shaft couplings

Assignees:
None

Manufacturer:
William Sellers & Co. - Philadelphia, PA

Witnesses:
Unknown

Patent Dates:
Granted: May 05, 1857

Patent Pictures:
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"Vintage Machinery" entry for William Sellers & Co.
Description:
This patent was granted an extension by Act of Congress.

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