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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
|
출원번호 | US-0906796 (1997-08-05) |
발명자 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 8 인용 특허 : 7 |
An outdoor baseball practice facility including a playing surface with a plurality of adjacent stations arranged thereon. Each station of the present invention includes a homeplate with angularly diverging baselines extending away therefrom to define a playing field therebetween. The baselines of an
[ What is claimed is:] [1.] An outdoor baseball practice facility, comprising:a playing surface defining an unobstructed playing area having a generally flat contour between opposed ends thereof, and wherein said playing area ranges about 325 feet and about 400 feet between said opposed ends;a plura
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