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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0514912 (1995-08-14) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 12 인용 특허 : 6 |
A golf putting aid comprising first and second golf balls connected together in an abutting relationship by a threaded connector that extends into holes formed in the first and second golf balls. The first golf ball includes a center formed by a thin wall, an elastic cover wound around the thin wall
A golf putting aid comprising: first and second golf balls having surfaces, each of said golf balls having a passage formed therein; and a connector having ends extending into said passages and urging said surfaces of said first and second golf balls into abutting relation forming tangent points bet
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