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公开(公告)号：FR2335295A1
公开(公告)日：1977-07-15
申请号：FR7637587
申请日：1976-12-14
Applicant: UNITED TECHNOLOGIES CORP
IPC: B23K20/00 , B23K1/00 , B23K20/233 , B23K35/00 , B23K35/30
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