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发明名称
Bandfilter
摘要
申请公布号
AT169290(B)
申请公布日期
1951.10.25
申请号
ATD169290
申请日期
1948.08.04
申请人
VEREINIGTE TELEPHON- UND TELEGRAPHENFABRIKS-AKTIENGESELLSCHAFT CZEIJA, NISSL & CO.
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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