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发明名称
ELECTRICAL MUSICAL APPARATUS
摘要
申请公布号
CA434478(A)
申请公布日期
1946.04.30
申请号
CAD434478
申请日期
申请人
HAMMOND INSTRUMENT COMPANY
发明人
JOHN M. HANERT
分类号
主分类号
代理机构
代理人
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