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发明名称
CONNEXION FOR PROTECTION OF PHONING CIRCUITS OF ENDIND TELEPHONE UNITS
摘要
申请公布号
CS238807(B1)
申请公布日期
1985.12.16
申请号
CS19810002290
申请日期
1981.03.30
申请人
ZUSKIN,SILVER,CS
发明人
ZUSKIN,SILVER,CS
分类号
H04M1/74;(IPC1-7):H04M1/74
主分类号
H04M1/74
代理机构
代理人
主权项
地址
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