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发明名称
Music stand
摘要
申请公布号
US2172085(A)
申请公布日期
1939.09.05
申请号
US19380198749
申请日期
1938.03.29
申请人
LAGERVALL OTTO L
发明人
LAGERVALL OTTO L.
分类号
A47B19/00
主分类号
A47B19/00
代理机构
代理人
主权项
地址
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