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US Patent: 857,562
Speed Changing Device
Patentees:
Richard K. Le Blond - Cincinnati, OH
William F. Groene - Cincinnati, OH

USPTO Classifications:
74/333

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jul. 08, 1905
Granted: Jun. 18, 1907

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for R. K. Leblond Machine Tool Co.

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