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US Patent: 1,256,501
Hydraulic Variable Speed Transmission
Patentee:
Conrad M. Conradson (exact or similar names) - Madison, Dane County, WI

USPTO Classifications:
180/307

Tool Categories:
metalworking machines : metalworking machine mechanisms

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Feb. 03, 1914
Granted: Feb. 12, 1918

Patent Pictures:
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