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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0138443 (1993-10-20) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 8 인용 특허 : 0 |
A castor wheel assembly comprises a base member for mounting on an object to be supported, a swivel member mounted on the base member for rotation about the vertical axis. A castor wheel is mounted on a pair of side plates which extend upwardly from an axle of the castor wheel and horizontally to a
A sprung castor wheel assembly comprising a base member having a mounting surface for mounting on an object to be supported and arranged so as to define a downwardly facing base surface, a swivel member mounted on the base member at the base surface for rotation relative thereto about a vertical swi
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