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US Patent: 1,674,973
Grinding Machine
Patentees:
Arthur L. Kline (exact or similar names) - Detroit, Wayne County, MI
Charles F. Clark (exact or similar names) - Detroit, Wayne County, MI

USPTO Classifications:
451/143, 451/400

Tool Categories:
metalworking machines : grinders : internal grinders

Assignees:
Pratt & Whitney Co. - New York, NY

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: May 26, 1925
Granted: Jun. 26, 1928

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Pratt, Whitney & Co.

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