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发明名称
SPRING TENSION ADJUSTING DEVICE FOR STRINGED MUSICAL INSTRUMENTS
摘要
申请公布号
GB8806686(D0)
申请公布日期
1988.04.20
申请号
GB19880006686
申请日期
1988.03.21
申请人
KK ARAI GAKKITEN
发明人
分类号
G10D3/12;G10D3/14
主分类号
G10D3/12
代理机构
代理人
主权项
地址
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