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经营范围
发明名称
Underground conduit
摘要
申请公布号
US2009068(A)
申请公布日期
1935.07.23
申请号
US19340746634
申请日期
1934.10.03
申请人
PORTER HARRY W;BOREN JR WILLIAM C
发明人
PORTER HARRY W.;JR. WILLIAM C. BOREN,
分类号
F16L57/00;F16L59/12
主分类号
F16L57/00
代理机构
代理人
主权项
地址
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