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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0677742 (1984-12-03) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 6 인용 특허 : 7 |
An exercise device is disclosed that operates with a swinging door to assist one in doing situps and related exercises. The device has a pair of wedge stops and strap means are secured to the stops and extended therebetween. Adjustment connection means are formed in the strap means to allow the sepa
A portable exercise device, adapted to be used by an exerciser lying on a floor on one side of a swinging door, for holding his/her feet firmly against the floor and door while doing situps and related exercises, comprising the combination of a pair of stops and flexible nonextendable strap means se
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