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经营范围
发明名称
MUSICAL TUNING AIDS
摘要
申请公布号
GB1271693(A)
申请公布日期
1972.04.26
申请号
GB19690031948
申请日期
1969.06.24
申请人
WILLIAM HUGH JARVIS;GRAHAM GARTON
发明人
WILLIAM HUGH JARVIS;GRAHAM GARTON
分类号
G10H1/44
主分类号
G10H1/44
代理机构
代理人
主权项
地址
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