handle svasata to the oval for tennis racket, through which improves the abilita'player.

• 1. 一种半椭圆形发热膜及椭圆形发热膜 [P] . 中国专利： CN214544820U . 2021-10-29
• 2. 椭圆形花洒夹具及椭圆形花洒焊接机 [P] . 中国专利： CN205614262U . 2016-10-05
• 3. two customized for tennis racket handles through which improves the ability of any player. [P] . IT8110714V0 . 1981-09-21

  机译： 两个为网球拍定制的手柄，可以提高任何球员的能力。

• 4. terminal handle for tennis rackets and the like, with a device for the delivery and distribution of talc.saponaria or other substance in order to improve the grip by the hand of the player. [P] . IT8121933V0 . 1981-05-29

  机译： 用于网球拍等的终端手柄，带有用于输送和分配滑石粉或其他物质的装置，以改善运动员手部的抓地力。

• 5. two handles apart for tennis racket, through which it is possible to improve the skill of the player. [P] . IT8110708V0 . 1981-09-14

  机译： 网球拍的两个手柄分开，可以提高球员的技术水平。

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• 5. The Huddle: Combining AI Methods to Improve Handling a Group of Characters by a Human Game Player. [D] . Davidson, Timothy. 2012
• 6. The Impacts of Shoulder Position Sense Vision Racket Weight and Gender on Racket Positioning Accuracy in Tennis Players [O] . KAITLYN COLLINS, SYDNEY YOUNG, YOU-JOU HUNG -1
• 7. Analysis of Impact Phenomenon with a Ball-Racket System in Tennis. (Effects of Boundary Condition at the Racket Handle). [O] . Yoshifumi Kanda, Yoshihiko Kawazoe 1995

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