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ULTRADüNNE SCHALLDAMPFENDE UND ISOLIERENDE BREITBANDSTRUKTUR ZUR STEUERUNG EINES SCHALLWELLENAUSBREITUNGSWEGES(德国)
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Release Time:2021-09-09
First Author:
王晓明
Disigner of the Invention:
Yulin Mei,梅艺璇
Application Number:
DE602017041045.4
Authorization Date:
2017-04-26
Authorization Number:
EP17906922.4(德国)
Date:
2021-09-09
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NEUARTIGER ULTRADüNNER AKUSTIKIMPEDANZTRANSFORMATOR