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公开(公告)号：US3051589A
公开(公告)日：1962-08-28
申请号：US75488658
申请日：1958-08-13
Applicant: PFAUDLER PERMUTIT INC
Inventor： SANFORD ELBERT A , GEORGE WARREN
CPC classification number: C03C4/00 , C03C2204/04 , C23D5/00 , Y10T428/252 , Y10T428/259
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