发明名称 Tennis racquet and method of making same
摘要 A tennis racquet having a polar moment of inertia similar to conventional length racquets, but being longer than conventional racquets with the same or larger size strung surface. Having the same polar moment of inertia as a well playing conventional racquet gives it the same "feel" but with greater reach, and, if desired, a larger strung surface.
申请公布号 US4367874(A) 申请公布日期 1983.01.11
申请号 US19790000929 申请日期 1979.01.04
申请人 STARWIN INDUSTRIES, INC. 发明人 STAUB, ANTHONY F.;STAUB, NORMAN T.;ERWIN, JOHN R.
分类号 A63B49/00;A63B49/02;A63B49/08;(IPC1-7):A63B49/00 主分类号 A63B49/00
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