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经营范围
发明名称
Automatic telephone system
摘要
申请公布号
US2426196(A)
申请公布日期
1947.08.26
申请号
US19430514931
申请日期
1943.12.20
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
GOHOREL FERNAND P.
分类号
H04Q3/62
主分类号
H04Q3/62
代理机构
代理人
主权项
地址
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