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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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