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公开(公告)号：EP3973748B1
公开(公告)日：2024-04-24
申请号：EP20724163.9
申请日：2020-05-13
CPC classification number: H05K1/056 , H05K2201/024520130101 , H05K2201/1010620130101 , H05K1/0274 , H05K2201/205420130101 , H05K2201/022420130101
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