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发明名称
TRANSDUCER DIAPHRAGM
摘要
申请公布号
GB8613473(D0)
申请公布日期
1986.07.09
申请号
GB19860013473
申请日期
1986.06.04
申请人
REEFGRADE LTD
发明人
分类号
H04R7/10;H04R7/12
主分类号
H04R7/10
代理机构
代理人
主权项
地址
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