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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
|
출원번호 | US-0464555 (1974-04-26) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 14 인용 특허 : 0 |
A trailer adapted to be towed by a prime mover supports at least one batting platform adapted to be stood upon by baseball players, one in each of a plurality of batting areas. A plurality of pitching machine, supported by the prime mover positioned a distance from the batting areas, the prime mover
A mobile means including a prime mover, and a trailer adapted to be towed by said prime mover; batting platform means supported by said trailer on which at least one baseball player stands; pitching means supported on said prime mover an extended distance from said batting platform means for automat
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