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经营范围
发明名称
Vorrichtung mit piezoelektrischem Kristall.
摘要
申请公布号
CH256674(A)
申请公布日期
1948.08.31
申请号
CHD256674
申请日期
1945.11.14
申请人
STANDARD TELEPHON UND RADIO AG.
发明人
AG. STANDARD TELEPHON UND RADIO
分类号
H03H9/09
主分类号
H03H9/09
代理机构
代理人
主权项
地址
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