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发明名称
ELECTRICAL MUSICAL INSTRUMENT
摘要
申请公布号
CA848708(A)
申请公布日期
1970.08.11
申请号
CAD848708
申请日期
申请人
ELECTRO-VOICE
发明人
DANIEL J. TOMCIK
分类号
主分类号
代理机构
代理人
主权项
地址
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