Patent search ap:("TNO") AND inv:"HOUW PIN POUW" Page 1

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发明授权
Device and method for manufacturing elbow fittings from straight tubing 失效
Title translation: 从直管制造弯头配件的装置和方法

公开(公告)号：US3328996A

公开(公告)日：1967-07-04

申请号：US34565064

申请日：1964-02-18

Applicant: TNO

Inventor： HOUW PIN POUW , ARIE VERKAIK

IPC: B21C37/28 , B21D11/18

CPC classification number: B21C37/28 , B21D11/18

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