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发明名称
IMPROVEMENTS IN OR RELATING TO ELECTROMECHANICAL TRANSDUCER
摘要
申请公布号
GB1223728(A)
申请公布日期
1971.03.03
申请号
GB19680033794
申请日期
1968.07.16
申请人
KRONE KOMMANDITGESELLSCHAFT
发明人
分类号
C12P7/48;H04R1/22;H04R9/10
主分类号
C12P7/48
代理机构
代理人
主权项
地址
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