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经营范围
发明名称
CREATING & STORING TELEPHONE DIRECTORY LISTINGS
摘要
申请公布号
GB8718704(D0)
申请公布日期
1987.09.16
申请号
GB19870018704
申请日期
1987.08.07
申请人
DICTAPHONE CORPORATION
发明人
分类号
H04M1/274;H04M1/247;H04M1/2745
主分类号
H04M1/274
代理机构
代理人
主权项
地址
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