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经营范围
发明名称
Automatic telephone apparatus
摘要
申请公布号
US2043526(A)
申请公布日期
1936.06.09
申请号
US19330673686
申请日期
1933.05.31
申请人
ALFRED BOYE
发明人
BOYE ALFRED
分类号
H04M1/274
主分类号
H04M1/274
代理机构
代理人
主权项
地址
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