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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
|
출원번호 | US-0804691 (1991-12-11) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 14 인용 특허 : 0 |
A combination of a conventional roller skate having a platform which supports the skater and axles/wheels below the supporting platform which are mounted in rotational relationship to the platform; and a motor adapted to drive the wheels. In this combination, there is provided a braking system which
An assembly of: A. a roller skate comprising: a skate platform means adapted to support a skater thereon; toe plate means pivotally joined to said skate platform means adapted to be operatively associated with a forward portion of a foot of said skater such that downward pressure of said forward por
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