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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0040232 (1979-05-18) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 6 인용 특허 : 2 |
A swimming apparatus wherein an endless, elongate, rope-like belt is looped once around the waist of the swimmer and over a suitable guide which permits the belt to slide back and forth as the swimmer rolls alternately one way and then the other in performing the customary swimming motions. A ring r
In a swimming apparatus, an endless rope-like belt means adapted to cooperate with an associated guide means and having at least two loops coiled in a section thereof for placement around the waist of a swimmer in snug fitting relation thereto; and holding means defining an aperture for receiving an
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