发明名称 Mould used for making a racket frame
摘要 A mould used for making a racket frame comprises an upper mould piece, a lower mould piece and an intermediate mould piece which cooperate to form a cavity that imparts a racket frame shape with the parting line of the mould pieces lying apart from a plane X-X that passes through stringing holes which will be drilled in the frame formed in the mould, thereby avoiding the performing of the deflashing operation at the portion near the stringing holes and preventing the damage of the fiber reinforcement for the string at that portion.
申请公布号 US4493472(A) 申请公布日期 1985.01.15
申请号 US19820416401 申请日期 1982.09.09
申请人 LO, KUN N. 发明人 LO, KUN N.
分类号 B29C33/00;(IPC1-7):B29C1/06;B29C1/14 主分类号 B29C33/00
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