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US Patent: 2,351,773
Device for Determining Angles
Patentee:
Hans J. Lovenston - Detroit, Wayne County, MI

USPTO Classifications:
269/71, 269/79, 269/84, 33/537, 33/538, 409/219

Tool Categories:
metalworking machines : grinders : grinding attachments

Assignees:
None

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

Witnesses:
Unknown

Patent Dates:
Applied: May 29, 1941
Granted: Jun. 20, 1944

Patent Pictures:
USPTO pdf tiff
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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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