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经营范围
发明名称
Improvements in or relating to piano construction
摘要
申请公布号
GB599402(A)
申请公布日期
1948.03.11
申请号
GB19450023926
申请日期
1945.09.17
申请人
GEORGE HERBERT STAPELY
发明人
分类号
G10C3/04
主分类号
G10C3/04
代理机构
代理人
主权项
地址
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