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US Patent: 1,382,003
Drill-holder
Patentee:
Henry W. Lightner (exact or similar names) - Grand Rapids, MI

USPTO Classifications:
451/375

Tool Categories:
metalworking machines : grinders : sharpening machines : drill sharpening machines

Assignees:
Wilmarth & Morman Co. - Grand Rapids, MI

Manufacturer:
Covel Mfg. Co. - Benton Harbor, MI
Wilmarth & Morman Co. - Grand Rapids, MI

Witnesses:
Unknown

Patent Dates:
Applied: Feb. 24, 1920
Granted: Jun. 21, 1921

Patent Pictures:
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Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Covel Mfg. Co.
Vintage Machinery entry for Wilmarth & Morman Co.
Description:
This patent date was seen on a Yankee drill grinder from Covel Mfg. Co.

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