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经营范围
发明名称
UNIDIRECTIONAL UNDERWATER TRANSMITTERRRECEIVER
摘要
申请公布号
JPS5315817(A)
申请公布日期
1978.02.14
申请号
JP19760089663
申请日期
1976.07.29
申请人
OKI ELECTRIC IND CO LTD
发明人
MATSUZAKI SUSUMU;KURATA AKIO
分类号
H04R1/40;B06B1/00;H04R7/00
主分类号
H04R1/40
代理机构
代理人
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