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US Patent: 3,426,926
Hydraulic system for use with telescopic boom apparatus
Patentee: Wallace J. Witwer (exact or similar names) - Waukesha, WI USPTO Classifications: 212/349, 212/350, 414/718 Tool Categories: Assignees: Hein-Werner Corp. - Waukesha, WI Manufacturer: Hein-Werner Corp. - Waukesha, WI Witnesses: Unknown	Patent Dates: Applied: Oct. 17, 1967 Granted: Feb. 11, 1969 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Hein-Werner Corp.

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