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US Patent: 5,544,861
Adjustable riser-ramp assembly
Patentees: Thomas F. Mandery (exact or similar names) - Mandery, WI James C. Graham (exact or similar names) - Waukesha, WI Craig A. Wisner (exact or similar names) - Wauwatosa, WI USPTO Classifications: 187/221, 254/88, 72/705 Tool Categories: material handling : jacks : vehicle jacks : automobile and truck jacks Assignees: Hein-Werner Corp. - Waukesha, WI Manufacturer: Hein-Werner Corp. - Waukesha, WI Witnesses: Unknown	Patent Dates: Applied: May 03, 1994 Granted: Aug. 13, 1996 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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