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发明名称
Vibratory piano tuning apparatus
摘要
申请公布号
US3195392(A)
申请公布日期
1965.07.20
申请号
US19630316418
申请日期
1963.10.15
申请人
GUY ALLEN JOSEPH
发明人
ALLEN JOSEPH GUY
分类号
G10G7/02
主分类号
G10G7/02
代理机构
代理人
主权项
地址
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