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US Patent: 1,932,796
Grease ram
Patentee: Norris F. McNaught (exact or similar names) - Chicago, IL USPTO Classifications: 184/105.1, 222/386, 411/517, 411/530 Tool Categories: Assignees: Duro Metal Products Co. - Chicago, IL Manufacturer: Duro Metal Products Co. - Chicago, IL Witnesses: Unknown	Patent Dates: Applied: May 18, 1931 Granted: Oct. 31, 1933 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Duro Metal Products Co.

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