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BREITBANDIGE ULTRADüNNE SCHALLWELLENDIFFUSIONSSTRUKTUR（德国）
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Release Time:2021-09-09
First Author:
Yulin Mei
Disigner of the Invention:
王晓明,梅艺璇
Application Number:
DE602017031908.2
Authorization Date:
2021-04-26
Authorization Number:
DE17907955.3（德国）
Date:
2021-09-09
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