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发明名称
CONNECTION FOR INDICATION OF OPTICAL SIGNALS ON THE EXCHANGE WORKPLACES BY MEANS OF SIGNALS
摘要
申请公布号
CS213421(B1)
申请公布日期
1982.04.09
申请号
CS19800007033
申请日期
1980.10.17
申请人
HRDONKA,VLADIMIR,CS
发明人
HRDONKA,VLADIMIR,CS
分类号
H04M1/72;(IPC1-7):H04M1/72
主分类号
H04M1/72
代理机构
代理人
主权项
地址
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