최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
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출원번호 | US-0630793 (1975-11-11) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 11 인용 특허 : 0 |
An educational game arrangement in which a systematic set of games may be played on a plurality of interrelated templates or game boards. The games played on the boards are aimed at teaching statistical principles, for example, as applied to situations in chemistry, biology, physics and economy, for
A game for education and entertainment comprising, in combination, a base plate having retaining means along the rim of said base plate; a plurality of templates on said base plate in superimposed position and retained on said base plate in predetermined position by said retaining means, said templa
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