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发明名称
LEUCHTSCHALTBILD FUER FERNSPRECHSYSTEME.
摘要
申请公布号
DE1705897(U)
申请公布日期
1955.08.25
申请号
DE195400S3425U
申请日期
1954.04.28
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
分类号
H02B15/02;H02B15/04
主分类号
H02B15/02
代理机构
代理人
主权项
地址
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