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发明名称
Mute holder
摘要
申请公布号
US2184790(A)
申请公布日期
1939.12.26
申请号
US19380209613
申请日期
1938.05.23
申请人
LINO BARTOLI
发明人
BARTOLI LINO
分类号
G10D3/04
主分类号
G10D3/04
代理机构
代理人
主权项
地址
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