发明授权
US4685674A Air-swing ball game 失效
空中摇摆球比赛

Air-swing ball game
摘要:
An air-swing ball game in which a ball suspended on a string is used to strike and knock down a plurality of pins set up according to a particularized scoring scheme and mounted on a game table having leaves that fold inwardly and upwardly to create a table useful for other purposes. The point of suspension of the ball can be changed to increase the level of difficulty of the game.
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