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US Patent: 4,078,383
Hydraulic hand jack with needle release valve
Patentee: R. Harlan Nehrig (exact or similar names) - Stevensville, MI USPTO Classifications: 251/122, 254/93H, 60/477, 60/481 Tool Categories: material handling : jacks : vehicle jacks : automobile and truck jacks material handling : jacks : hydraulic jacks Assignees: None Manufacturer: Auto Specialties Mfg. Co. - St. Joseph, MI Witnesses: Unknown	Patent Dates: Applied: Jan. 04, 1977 Granted: Mar. 14, 1978 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin
Description: The goal of this release valve is to allow an easily-controlled lowering action.

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