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发明名称
Pianette
摘要
申请公布号
US1891268(A)
申请公布日期
1932.12.20
申请号
US19300431032
申请日期
1930.02.24
申请人
DOROTHY MILLER
发明人
MILLER DOROTHY
分类号
G10D13/08
主分类号
G10D13/08
代理机构
代理人
主权项
地址
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