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Curve ball training

  • US 5,820,495 A
  • Filed: 03/29/1996
  • Issued: 10/13/1998
  • Est. Priority Date: 03/29/1996
  • Status: Expired due to Fees
First Claim
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1. A training device for use in practicing throwing a curve ball, comprising:

  • a first ball being held and thrown by the user; and

    a counterweight connected to the first ball at a fixed position, the counterweight providing a balance point by its mass which balances the mass of the first ball.

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