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发明名称
Einrichtung zur Frequenzkonstanthaltung von Piezokristallen.
摘要
申请公布号
AT125430(B)
申请公布日期
1931.11.10
申请号
ATD125430
申请日期
1930.11.18
申请人
C. LORENZ AKTIENGESELLSCHAFT
发明人
分类号
H03B5/34;H03L1/04
主分类号
H03B5/34
代理机构
代理人
主权项
地址
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