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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0219546 (1994-03-28) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 48 인용 특허 : 0 |
A practice ball comprised of mutually perpendicular X-, Y- and Z-members. A plurality of wings interconnect the X-, Y- and Z- members. The shape of said wings skeletally defines the shape of the practice ball. The wings and reduced weight of the practice ball provide for a shorter trajectory for the
A practice ball comprising an X-member, a Y-member and a Z-member rigidly attached at their midpoints, and a plurality of wings interconnecting said X-member, Y-member and Z-member, said wings being shaped like flat webs, said X-member, Y-member and Z-member having a constant cross-section over thei
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