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US Patent: 2,256,731
Means for forming and segregating rock chips from aggregates
Patentee: George C. Winther (exact or similar names) - Minneapolis, MN USPTO Classifications: 209/247, 209/257, 241/101.71, 241/152.2, 241/76, 241/80, 241/81 Tool Categories: Assignees: Diamond Iron Works, Inc. - Minneapolis, MN Manufacturer: Diamond Iron Works - Minneapolis, MN Witnesses: Unknown	Patent Dates: Applied: Jul. 10, 1938 Granted: Sep. 23, 1941 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Diamond Iron Works
Description: The assignee also made sawmill machinery.

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