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公开(公告)号：US3150222A
公开(公告)日：1964-09-22
申请号：US11043661
申请日：1961-05-16
Applicant: PHILLIPS PETROLEUM CO
Inventor： MILTON BLANSTEIN , SCOTT JR JOHN N
CPC classification number: B29D1/00 , B29C45/2618
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