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发明名称
LOOP EXTENDER
摘要
申请公布号
GB1583223(A)
申请公布日期
1981.01.21
申请号
GB19770019792
申请日期
1977.05.11
申请人
LORAIN PRODUCTS CORP
发明人
分类号
H04M19/00;(IPC1-7):H04M1/76
主分类号
H04M19/00
代理机构
代理人
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地址
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