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US Patent: 715,078
Changeable Speed Gear
Patentee:
Henry F. Jeffs (exact or similar names) - Brooklyn, Kings County, NY

USPTO Classifications:
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: May 27, 1902
Granted: Dec. 02, 1902

Patent Pictures:
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