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US Patent: 252,537
Speed Gearing
Patentee:
John Stewart (exact or similar names) - Newark, Essex County, NJ

USPTO Classifications:
475/159, 475/320

Tool Categories:
industrial machines : industrial machine mechanisms : industrial machine speed and direction changing mechanisms

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Dec. 02, 1881
Granted: Jan. 17, 1882

Patent Pictures:
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