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US Patent: 2,250,633
Taper attachment
Patentees:
George W. Luning (exact or similar names) - Cincinnati, OH
William F. Groene (exact or similar names) - Cincinnati, OH

USPTO Classifications:
82/17

Tool Categories:
metalworking machines : metal lathes : metal lathe accessories and attachments

Assignees:
R. K. LeBlond Machine Tool Co. - Cincinnati, OH

Manufacturer:
R. K. LeBlond Machine Tool Co. - Cincinnati, OH

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 11, 1940
Granted: Jul. 29, 1941

Patent Pictures:
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Vintage Machinery entry for R. K. LeBlond Machine Tool Co.
Description:
Improvements to patent 2,198,090.

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