发明名称 PITCHER'S MOUND WITH TOE BLOCK AND REINFORCING RIBS
摘要 A portable pitching mound having a removable toe block and reinforcing ribs. A base is integrally joined to an upward sloping mound having a removable toe block secured at its top. The removable toe block is secured within the mound by a tongue and groove arrangement. The removable toe block is made from rubber having a heel supporting portion and a toe supporting portion. Various reinforcing ribs are integrally attached to the hollow bottom interior of the mound supporting the removable toe block. A non-skid pad is attached to the bottom of the pitcher's mound.
申请公布号 US3703285(A) 申请公布日期 1972.11.21
申请号 USD3703285 申请日期 1971.04.29
申请人 JAMES T. PERRY;PHILIP H. WILLKIE 发明人 JAMES T. PERRY
分类号 A63C19/04;(IPC1-7):A63B71/00 主分类号 A63C19/04
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