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发明名称
Improvements relating to pianos
摘要
申请公布号
GB465439(A)
申请公布日期
1937.05.07
申请号
GB19360016316
申请日期
1936.06.11
申请人
DOUGLAS WALTER GROVER;THE STROUD PIANO COMPANY LIMITED
发明人
分类号
G10C3/02
主分类号
G10C3/02
代理机构
代理人
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地址
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