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发明名称
Drum beater
摘要
申请公布号
US1909761(A)
申请公布日期
1933.05.16
申请号
US19320634377
申请日期
1932.09.22
申请人
C. G. CONN, LTD.
发明人
GREENLEAF LELAND B.
分类号
G10D13/00
主分类号
G10D13/00
代理机构
代理人
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地址
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