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发明名称
Harmonichord instrument
摘要
申请公布号
US2228058(A)
申请公布日期
1941.01.07
申请号
US19390303203
申请日期
1939.11.07
申请人
JOSEPH LEDERFINE
发明人
LEDERFINE JOSEPH
分类号
G10D7/12
主分类号
G10D7/12
代理机构
代理人
主权项
地址
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