Amusement devices: games – Surface projectile game; game element – Simulated game
Patent
1993-05-07
1994-04-26
Marlo, George J.
Amusement devices: games
Surface projectile game; game element
Simulated game
273 812, A63B 6936
Patent
active
053060105
ABSTRACT:
An extensible exercise golf club including a golf club shaft comprising a plurality of telescopic interlocking shaft lengths which function to extend from a collapsed position to a fully extended position as a result of the force generated by the swinging action of the golf club and automatically return to the collapsed position by the force of vacuum generated within the shaft as the shaft sections are telescopically extended.
REFERENCES:
patent: 3837689 (1974-09-01), Csatlos
patent: 4674747 (1987-06-01), Mazzocco
patent: 4932661 (1990-06-01), Choi
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