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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0065494 (1993-05-24) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 34 인용 특허 : 0 |
The present invention relates to an improved, low-cost shopping cart construction and more specifically, to a shopping cart having a braking device to prevent unintentional movement of the cart, said braking device providing a slight resistance on all four wheels. This invention provides a constant
In combination, a shopping cart supported on a set of wheels, said wheels each having an axle with each wheel being mounted on the axle, said wheels being rotatable as the cart is moved on its wheels, tubular yokes, said tubular yokes being secured at corners of the cart to the cart, said wheels bei
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