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US Patent: 412,926
Adjustable Cone Center for Lathes
Patentee:
John Knight (exact or similar names) - San Francisco, San Francisco County, CA

USPTO Classifications:
82/150

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: Jun. 07, 1889
Granted: Oct. 15, 1889

Patent Pictures:
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