发明名称 Projectile catapult and amusement device
摘要 A projectile catapult which is inherently energy dissipative or mechanically not efficient for "jumping" a simulated frog from the edge of a simulated lake or pond toward a moving lily pad target. The catapult is actuated by user-provided force but use thereof with game apparatus as an amusement device is determined not by user strength but rather by factors of chance and user skill.
申请公布号 US4583743(A) 申请公布日期 1986.04.22
申请号 US19850735097 申请日期 1985.05.17
申请人 MACEK, GEORGE L. 发明人 MACEK, GEORGE L.
分类号 A63F9/02;(IPC1-7):A63F9/02;F41J9/02;F41B3/02 主分类号 A63F9/02
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