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发明名称
ELECTRICAL MUSICAL INSTRUMENT
摘要
申请公布号
CA352247(A)
申请公布日期
1935.08.06
申请号
CAD352247
申请日期
申请人
JOHN HALMAGYI
发明人
NICHOLAS LANGER
分类号
主分类号
代理机构
代理人
主权项
地址
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