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发明名称
Improvements in or relating to pianoforte actions
摘要
申请公布号
GB475009(A)
申请公布日期
1937.11.11
申请号
GB19360033080
申请日期
1936.12.02
申请人
BRITISH PIANO ACTIONS LIMITED;CHRISTIAN HENRY WEHLAU
发明人
分类号
G10C3/16
主分类号
G10C3/16
代理机构
代理人
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地址
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