Amusement devices: games – Surface projectile game; game element – Simulated game
Patent
1982-09-16
1984-06-26
Marlo, George J.
Amusement devices: games
Surface projectile game; game element
Simulated game
273186A, 273186C, A63B 6936
Patent
active
044562578
ABSTRACT:
A golf club is provided with swing plane sensing apparatus. Light beams are projected in opposite and parallel directions lengthwise of the club shaft. The beams may be projected axially of the shaft, or outside the shaft.
REFERENCES:
patent: 2080608 (1937-05-01), Hannaford
patent: 3070373 (1962-12-01), Mathews et al.
patent: 3191939 (1965-06-01), Hooper
patent: 3707291 (1972-12-01), Tredway
patent: 3753564 (1973-08-01), Brandell
patent: 4342456 (1982-08-01), Miyamae
Haefliger William W.
Marlo George J.
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