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发明名称
METHOD OF MANUFACTURING BLACK COLOURED LOUDSPEAKER MEMBRANES
摘要
申请公布号
PL142720(B2)
申请公布日期
1987.11.30
申请号
PL19850256801
申请日期
1985.12.12
申请人
发明人
分类号
C08J;C08J3/20;C09B;C09B67/00;(IPC1-7):C08J3/20
主分类号
C08J
代理机构
代理人
主权项
地址
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