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发明名称
ELECTRIC MUSICAL KEYBOARD INSTRUMENT
摘要
申请公布号
CA674213(A)
申请公布日期
1963.11.19
申请号
CAD674213
申请日期
申请人
ANDREY A. VOLODIN
发明人
ANDREY A. VOLODIN
分类号
主分类号
代理机构
代理人
主权项
地址
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