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经营范围
发明名称
Underground conduit
摘要
申请公布号
US1798205(A)
申请公布日期
1931.03.31
申请号
US19270243112
申请日期
1927.12.28
申请人
JEWELL HOWARD W
发明人
JEWELL HOWARD W.
分类号
H02G9/06
主分类号
H02G9/06
代理机构
代理人
主权项
地址
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