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经营范围
发明名称
CONTOUR SLIDING VIBRATOR AND ITS FREQUENCY ADJUSTMENT METHOD
摘要
PURPOSE:To reduce the frequency adjustment progress, by forming the contour sliding vibrator, making the electrode shape spiral.
申请公布号
JPS52120695(A)
申请公布日期
1977.10.11
申请号
JP19760037557
申请日期
1976.04.02
申请人
发明人
分类号
H03H9/19;H03H9/13
主分类号
H03H9/19
代理机构
代理人
主权项
地址
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