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发明名称
Method of installing an underground conduit system
摘要
申请公布号
US1744102(A)
申请公布日期
1930.01.21
申请号
US19250055928
申请日期
1925.09.12
申请人
BROWN COMPANY
发明人
BURKE EDMUND
分类号
F16L1/028;F16L3/22;H02G1/06;H02G9/02;H02G9/04
主分类号
F16L1/028
代理机构
代理人
主权项
地址
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