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发明名称
Nach dem Halleffekt arbeitender elektromechanischer Wandler
摘要
申请公布号
DE1165291(B)
申请公布日期
1964.03.12
申请号
DE1957C015811
申请日期
1957.11.19
申请人
COSMOCORD LIMITED
发明人
LORO ALBERTO;PLANER GEORGE VICTOR
分类号
H04R21/02;H04R23/00
主分类号
H04R21/02
代理机构
代理人
主权项
地址
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