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发明名称
PIANOFORTE
摘要
申请公布号
CA373267(A)
申请公布日期
1938.04.19
申请号
CAD373267
申请日期
申请人
MICHAEL KEMBLE
发明人
HERBERT SPENCER BIRD;MORDECAI VICTOR JACOBS
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主分类号
代理机构
代理人
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