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公开(公告)号：US3313911A
公开(公告)日：1967-04-11
申请号：US37377964
申请日：1964-06-09
Applicant: SEELOFFF MELVIN M
Inventor： SEELOFFF MELVIN M
IPC: B23K11/06
CPC classification number: B23K11/061 , B23K2201/16
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