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FR Patent: FR-828,200
Magnetic Sine Table
Patentee:
Omer E. Robbins - Detroit, Wayne County, MI

USPTO Classifications:

Tool Categories:
metalworking machines : grinders : grinding attachments

Assignees:
None

Manufacturer:
Ex-Cell-O Corp. - Greenville, Darke County, OH

Witnesses:
Unknown

Patent Dates:
Granted: May 11, 1938

Patent Pictures:
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"Vintage Machinery" entry for EX-CELL-O Machine Tools, Inc.
Description:
This patent was on a Sine-Magnetic Chuck manufactured by the Ex-Cell-O Corp.

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