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发明名称
Indicating musical instrument and tune card therefor
摘要
申请公布号
US2792739(A)
申请公布日期
1957.05.21
申请号
US19540436207
申请日期
1954.06.11
申请人
ANSON ISAACSON
发明人
ISAACSON ANSON
分类号
G10G1/02
主分类号
G10G1/02
代理机构
代理人
主权项
地址
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