Geometrical instruments – Area integrators – Electrical
Patent
1978-07-31
1980-05-27
Stearns, Richard R.
Geometrical instruments
Area integrators
Electrical
273182R, 273183D, A63B 6936, A63B 5300
Patent
active
042043328
ABSTRACT:
A golf aid for correcting the drive angle of a golf ball is secured to the shaft of a golf club. An indicator scale is mounted on the golf aid in a plane generally perpendicular to the axis of the shaft. A pointer is positioned adjacent to the scale for providing an indication of the amount of drive angle to be corrected. The pointer is manually moveable.
REFERENCES:
patent: 2135648 (1938-11-01), Stumpf
patent: 2138422 (1938-11-01), Halpin
patent: 2630012 (1953-03-01), Walker
patent: 3033574 (1962-05-01), Partridge
patent: 3118678 (1964-01-01), Rohr
patent: 3273893 (1965-09-01), Duncan
patent: 3300862 (1967-01-01), Judge
patent: 3323367 (1967-06-01), Searle
patent: 3951415 (1976-04-01), Stuart
Hertz Harvey S.
Stearns Richard R.
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