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发明名称
SOUND SHIELDING METHOD FOR ULTRASONIC SENSOR AND SOUND SHIELDING MEMBER BASED ON THE SAME METHOD
摘要
申请公布号
JPH04120899(A)
申请公布日期
1992.04.21
申请号
JP19900241942
申请日期
1990.09.11
申请人
FURUNO ELECTRIC CO LTD
发明人
YAMAMOTO TOKIAKI;OGAWA SHINJI;MATSUHIRO NORIO;KOMINE KENJI
分类号
H04R1/34
主分类号
H04R1/34
代理机构
代理人
主权项
地址
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