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发明名称
KONTAKTANORDNUNG IM FERNSPRECHHANDAPPARAT ZUR KONTAKTGABE DER SPRECHKAPSEL MITTELS EINER KONTAKTGABEL.
摘要
申请公布号
DE1792639(U)
申请公布日期
1959.07.30
申请号
DE195900W1332U
申请日期
1959.01.30
申请人
HANS WIDMAIER
发明人
HANS WIDMAIER
分类号
主分类号
代理机构
代理人
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