Invention Grant
US09149704B1 Golf training ball 有权
高尔夫训练球

Golf training ball
Abstract:
A short-flight golf training ball has a spherical hollow rubber carcass, a felt cover, and a hard spherical inner core. The spherical hollow rubber carcass has a spherical outer wall and a spherical interior wall defining a hollow spherical interior that has an interior diameter. The felt cover affixed to the outer wall. The hard spherical inner core has an outer diameter that is less than interior diameter of the carcass and is free or substantially free to move around at will in the hollow spherical interior.
Information query
Patent Agency Ranking
0/0