US4815259A. Rotary lawn mower gang frame. Google Patents Publication number US4815259A US4815259A US07/165,621 US16562188A US4815259A US 4815259 A US4815259 A US 4815259A US 16562188 A US16562188 A US 16562188A US 4815259 A US4815259 A US 4815259A Authority US United States Prior art keywords bar lawn draft skid lawn mower Prior art date 1988-03-08 Legal status (The legal status is an […]

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