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经营范围
发明名称
Ribbon Transducers
摘要
申请公布号
CA2019541(A1)
申请公布日期
1990.12.21
申请号
CA19902019541
申请日期
1990.06.21
申请人
CELESTION INTERNATIONAL LIMITED
发明人
BANK, GRAHAM;PINFOLD, HAROLD C. (DECEASED)
分类号
H04R9/00;H04R9/04;(IPC1-7):H04R1/02
主分类号
H04R9/00
代理机构
代理人
主权项
地址
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