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发明名称
摘要
申请公布号
DE2026426(A1)
申请公布日期
1971.05.19
申请号
DE19702026426
申请日期
1970.05.29
申请人
PARASKEVAKOS TH
发明人
分类号
H04M1/57;H04Q3/00;(IPC1-7):H04M3/64
主分类号
H04M1/57
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