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经营范围
发明名称
Automatic dial operator
摘要
申请公布号
GB593914(A)
申请公布日期
1947.10.29
申请号
GB19450007860
申请日期
1945.03.28
申请人
MARCEL DEMEULENAERE;ROBERT DEMEULENAERE
发明人
分类号
H04M1/272;H04M1/274
主分类号
H04M1/272
代理机构
代理人
主权项
地址
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