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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0004902 (1979-01-19) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 11 인용 특허 : 2 |
A training device for competitive swimmers in the form of a drag producing belt adapted to be worn over the swimmer\s regular suit or trunks. The drag producing belt adds weight and increases the resistance (drag) to the swimmer\s movement through the water and thus helps in the development of the s
A drag creating device for a swimmer training for competition, the device being adapted to be worn around the swimmer\s waist and comprising a belt member having adjustable means for securing its ends together, and a plurality of cup-like drag creating pockets, each having a front and a back, said p
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