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经营范围
发明名称
UN TRANSDUCTOR ULTRASONICO.
摘要
申请公布号
ES379785(A1)
申请公布日期
1972.09.01
申请号
ES19850003797
申请日期
1970.05.18
申请人
PARKE, DAVIS & CO.
发明人
分类号
H04R;(IPC1-7):04R/
主分类号
H04R
代理机构
代理人
主权项
地址
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