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公开(公告)号：US3331395A
公开(公告)日：1967-07-18
申请号：US40081264
申请日：1964-10-01
Applicant: TRUBENISED COMPANY
Inventor： LAWS ARTHUR E
IPC: F15B13/06
CPC classification number: F15B13/06 , Y10T137/86574 , Y10T137/86702
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