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公开(公告)号：US3517157A
公开(公告)日：1970-06-23
申请号：US3517157D
申请日：1967-08-29
Applicant: CORNING GLASS WORKS
Inventor： BEST HOWARD S , TOMPKINS GORDON R
CPC classification number: B23K1/0004 , Y10T29/532
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