发明名称 Gymnastic mat
摘要 A gymnastic mat capable of simple assembly and disassembly for compact storage. Cushioning material is contained within a readily disassemblable rigid frame. A cover of flexible material is attached to the top of the frame by elastic tie-down devices to contain the cushioning material within the frame and maintain a taut and wrinkle-free surface.
申请公布号 US4137583(A) 申请公布日期 1979.02.06
申请号 US19770858652 申请日期 1977.12.08
申请人 BALDWIN/GREEN INC. 发明人 BALDWIN, BEECHER B.;HIGGINS, HAROLD
分类号 A63C19/04;(IPC1-7):A47G9/00 主分类号 A63C19/04
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