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US Patent: 660,821
Centering Device for Lathes
Patentee:
John G. Obermier (exact or similar names) - Canton, Stark County, OH

USPTO Classifications:
82/148

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jan. 13, 1900
Granted: Oct. 30, 1900

Patent Pictures:
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