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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
|
출원번호 | US-0935720 (1986-11-28) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 6 인용 특허 : 1 |
An apparatus for forming tapered threads to a workpiece such as a pipe comprises a casing and a supporting member attached to one side of the casing, and three support plates rotatably attached to the supporting member. Roller members or cam members are secured to the support plates, respectively, t
An apparatus for forming tapered threads to a workpiece such as a pipe comprising: a casing; a non-rotatable support member or ring shape secured to one side of said casing; at least three support plates each pivotably attached to said support member and provided with a cam surface; at least three c
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