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发明名称
Transducteur électroacoustique comportant au moins un espace résonnant couplé par au moins un orifice muni d'un recouvrement amortisseur
摘要
申请公布号
FR1441222(A)
申请公布日期
1966.06.03
申请号
FR19650025956
申请日期
1965.07.26
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
分类号
H04R1/22
主分类号
H04R1/22
代理机构
代理人
主权项
地址
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