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发明名称
FIELD EFFECT ELECTROACOUSTIC TRANSDUCER
摘要
申请公布号
US3436492(A)
申请公布日期
1969.04.01
申请号
USD3436492
申请日期
1966.01.17
申请人
NORTHERN ELECTRIC CO. LTD.
发明人
CORNELIS W. REEDYK
分类号
H01L29/00;H04R23/02;(IPC1-7):H04R19/00
主分类号
H01L29/00
代理机构
代理人
主权项
地址
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