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发明名称
Gegen Feuchtigkeit und Staub, insbesondere Eisenstaub geschützter dynamischer Schallwandler
摘要
申请公布号
AT249766(B)
申请公布日期
1966.10.10
申请号
AT19640005558
申请日期
1964.06.29
申请人
HEINRICH PEIKER
发明人
HEINRICH PEIKER
分类号
H04R9/00
主分类号
H04R9/00
代理机构
代理人
主权项
地址
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