Thread-wound golf ball

Amusement devices: games – Board games – pieces – or boards therefor – Rotatably mounted board

Patent

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Details

273225, 273230, A63B 3706

Patent

active

054453879

ABSTRACT:
In a thread-wound golf ball comprising a solid center, a thread rubber layer and a cover, the solid center has a single structure and is continuously increased in hardness from its center to its outer surface such that the difference in hardness between the center and 2 mm inside the outer surface is at least about 4 in JIS C scale hardness. The ball is improved in hitting feel.

REFERENCES:
patent: 1080592 (1913-12-01), Saunders
patent: 4570937 (1986-02-01), Yamada
patent: 4650193 (1987-03-01), Molitor et al.
patent: 5184828 (1993-02-01), Kim et al.

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