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CA Patent: CA-822,521
Excavator and grader or crane apparatus
Patentees: Jay V. Wright (exact or similar names) - Menonomee Falls, WI Wallace J. Witwer (exact or similar names) - Waukesha, WI USPTO Classifications: Tool Categories: construction machines : excavators material handling : cranes construction machines : cranes transportation : heavy motor vehicles : graders and dozers Assignees: Hein-Werner Corp. - Waukesha, WI Manufacturer: Hein-Werner Corp. - Waukesha, WI Witnesses: Unknown	Patent Dates: Granted: Sep. 09, 1969 Patent Pictures: CIPO Data Espacenet patent Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Hein-Werner Corp.

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