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发明名称
Kohlegriessmikrophon-Sprechkapsel
摘要
申请公布号
DE1061825(B)
申请公布日期
1959.07.23
申请号
DE1954W013356
申请日期
1954.02.26
申请人
HANS WIDMAIER
发明人
WIDMAIER HANS
分类号
H04R21/02
主分类号
H04R21/02
代理机构
代理人
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地址
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