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US Patent: 840,669
Variable Speed Mechanism
Patentee:
Louis Thiel (exact or similar names) - Cincinnati, OH

USPTO Classifications:
74/341

Tool Categories:
metalworking machines : metalworking machine mechanisms : metalworking machine gearing : metalworking speed changing mechanisms

Assignees:
Cincinnati Milling Machine Co. - Cincinnati, OH

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Aug. 17, 1906
Granted: Jan. 08, 1907

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Cincinnati Milling Machine Co.

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