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发明名称
AIRRTIGHT SEALING METHOD OF CRYSTAL OSCILLATOR
摘要
PURPOSE:Prevention of the frequency change on standing of crystal oscillator by introducing an air-tight sealing method by resistance welding.
申请公布号
JPS5227293(A)
申请公布日期
1977.03.01
申请号
JP19750103278
申请日期
1975.08.26
申请人
SEIKOUSHIYA KK
发明人
SAMEJIMA SHIYUNEI
分类号
H03H3/02;H03H9/05
主分类号
H03H3/02
代理机构
代理人
主权项
地址
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