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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0717895 (1991-06-19) |
발명자 / 주소 |
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출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 28 인용 특허 : 0 |
A rigid drive assembly for a telescoping mast is comprised of a pair of flexible link chains disposed at right angles to one another with respect to the pivot axes of the chain links and provided with interengaging latching elements which rigidly interconnect the two chains for movement along a line
In a drive assembly comprising a head member movable along a generally straight path between first and second positions, driving and driven flexible chain member means for moving said head member between said first and second positions and having corresponding first ends connected to said head membe
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