Games using tangible projectile – Projectile – per se; part thereof or accessory therefor – Having hollow core or bladder enclosed within cover
Patent
1996-03-12
2000-02-29
Wong, Steven
Games using tangible projectile
Projectile, per se; part thereof or accessory therefor
Having hollow core or bladder enclosed within cover
A63B 3900
Patent
active
060303042
ABSTRACT:
A pressureless tennis ball comprises a novel core which is formed from a compound containing rubber and a plastomer defined as a copolymer of ethylene and one or more alkenes.
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Dillon William E.
Matheny Jerry
Simonutti Frank M.
Tolley Peter R.
Wilson Sporting Goods Co.
Wong Steven
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