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发明名称
Piezoelektrisches Geraet
摘要
申请公布号
DE738063(C)
申请公布日期
1943.08.03
申请号
DE1937A085220D
申请日期
1937.12.18
申请人
ALLGEMEINE ELEKTRICITAETS-GESELLSCHAFT
发明人
分类号
H04R17/00
主分类号
H04R17/00
代理机构
代理人
主权项
地址
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