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经营范围
发明名称
Air valve for pipe organs
摘要
申请公布号
US1747894(A)
申请公布日期
1930.02.18
申请号
US19270184930
申请日期
1927.04.19
申请人
JENNIE A. FLAHERTY
发明人
FLAHERTY FREDERICK J.
分类号
G10B3/06
主分类号
G10B3/06
代理机构
代理人
主权项
地址
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