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US Patent: 3,448,828
Drive speed control
Patentee: Charles K. Goldberg (exact or similar names) - Chicago, IL USPTO Classifications: 184/6, 475/136, 475/147, 475/159, 475/315 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: Mar. 27, 1967 Granted: Jun. 10, 1969 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.
Description: "A drive speed control of the planetary transmission type having a lubricating system that does not rely on agitation alone..."

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