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发明名称
MANUFACTURE AND WATERTIGHT STRUCTURE OF UNDERWATER SOUND WAVE RECEIVER
摘要
申请公布号
JPH0310600(A)
申请公布日期
1991.01.18
申请号
JP19890144178
申请日期
1989.06.08
申请人
OKI ELECTRIC IND CO LTD
发明人
MITSUYOSHI TETSUO
分类号
H04R1/44
主分类号
H04R1/44
代理机构
代理人
主权项
地址
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