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发明名称
DIAPHRAGM OF SPEAKER
摘要
申请公布号
JPS5393816(A)
申请公布日期
1978.08.17
申请号
JP19770007710
申请日期
1977.01.28
申请人
HITACHI LTD
发明人
KITOU ISAO;ITOU TAMOTSU;SUGIMOTO TOSHITAKA
分类号
H04R7/12;H04R7/26;H04R9/06
主分类号
H04R7/12
代理机构
代理人
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地址
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