发明名称 Billiards utilizing similar and dissimilar balls
摘要 The invention reside in a plurality of spherically balanced billiard balls whereby the balls are divided into two equal sets of balls, each set of balls being identical in mass distribution, and each ball of each set has a mass dissimilar from the mass of any other ball of the respective set. Each set of balls further has one ball with a mass equal to the median mass of the respective set. The plurality of balls further has another ball which has a mass equal to the median mass ball of said two sets.
申请公布号 US5042803(A) 申请公布日期 1991.08.27
申请号 US19880276941 申请日期 1988.11.28
申请人 FOX, CORDELL J.;MIHALYO, MICHAEL F. 发明人 FOX, CORDELL J.;MIHALYO, MICHAEL F.
分类号 A63B43/00;A63B43/04 主分类号 A63B43/00
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