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发明名称
PIANO ACTION
摘要
<p>PURPOSE:To acieve the simplification of assembling and smoothing of resetting to a static position by letting plural energizing parts provided to a strip body along its longitudinal direction be jack springs.</p>
申请公布号
JPS53135318(A)
申请公布日期
1978.11.25
申请号
JP19770050231
申请日期
1977.04.30
申请人
NIPPON MUSICAL INSTRUMENTS MFG
发明人
HAYASHIDA HAJIME
分类号
G10C3/16
主分类号
G10C3/16
代理机构
代理人
主权项
地址
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