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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
|
출원번호 | US-0077829 (1979-09-21) |
우선권정보 | FR-0027721 (1978-09-22) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 11 인용 특허 : 1 |
The present invention relates to a device for the assembling of a plurality of converging tubular bars by means of a central star-shaped core with points which fit into the tube ends, each of the points having means for clamping by expansion in said tubes, the ends of which are in their turn shaped
In a device for the uncoupling connection of a plurality of convergent tubes by means of a star-shaped central core with branches which fit into ends of the tubes, each of the branches having means for clamping by expansion in said tubes, the ends of the tubes being shaped to fit against each other
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