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发明名称
Key contact system for electronic organs
摘要
申请公布号
US2848920(A)
申请公布日期
1958.08.26
申请号
US19550491561
申请日期
1955.03.02
申请人
LESTER JOHN M
发明人
LESTER JOHN M.
分类号
G10H1/055
主分类号
G10H1/055
代理机构
代理人
主权项
地址
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