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发明名称
Drum major's baton
摘要
申请公布号
US2146972(A)
申请公布日期
1939.02.14
申请号
US19370179449
申请日期
1937.12.13
申请人
C. G. CONN, LTD.
发明人
MILLER FREDERICK W.
分类号
G10G7/00
主分类号
G10G7/00
代理机构
代理人
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