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Joe Thum formed an institution known as the American Bowling Congress.
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Bowling balls were previously made of lignum vitae, a very hard wood product. It wasn't until the first rubber ball
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Brunswick Corporation produced the Mineralite ball, touting its "mysterious rubber compound.
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provided more hooking action on the prevalent lane finishes
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soften the surface of the ball without softening the core of the ball and thus increase the coefficient of friction.
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rubber ball actually produced slightly more surface friction than does polyester (plastic) bowling balls