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US Patent: 3,913,450
Hydraulic control system for press brakes or the like
Patentee: Robert MacGregor (exact or similar names) - Blue Island, IL USPTO Classifications: 91/390, 91/400, 91/410, 91/448, 91/519, 92/13.1 Tool Categories: metalworking machines : sheet metal : sheet metal brakes Assignees: Dreis & Krump Mfg. Co. - Chicago, IL Manufacturer: Dreis & Krump Mfg. Co. - Chicago, IL Witnesses: Unknown	Patent Dates: Applied: May 11, 1973 Granted: Oct. 21, 1975 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Dreis & Krump Mfg. Co.

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