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发明名称
SPERREINRICHTUNG FUER RUECKSTELLBARE GESPRAECHSZAEHLER.
摘要
申请公布号
DE1931559(U)
申请公布日期
1966.01.27
申请号
DE196500M3107U
申请日期
1965.10.29
申请人
FRIEDRICH MERK TELEFONBAU AKTIENGESELLSCHAFT
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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