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US Patent: 1,772,082
Device for Assembling and Holding Piston Rings for Machining Operations
Patentee:
Joseph H. Hoern (exact or similar names) - Saginaw, Saginaw County, MI

USPTO Classifications:
279/2.19, 279/2.24, 409/903, 82/169

Tool Categories:
metalworking machines : metalworking machine mechanisms

Assignees:
Wilcox-Rich Corp - Detroit, Wayne County, MI

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jun. 29, 1929
Granted: Aug. 05, 1930

Patent Pictures:
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