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经营范围
发明名称
Pipe cleaning apparatus
摘要
申请公布号
US2248742(A)
申请公布日期
1941.07.08
申请号
US19390272190
申请日期
1939.05.06
申请人
PANHANDLE EASTERN PIPE LINE COMPANY
发明人
BURNHAM CHARLES H. M.
分类号
B08B9/04;B08B9/057
主分类号
B08B9/04
代理机构
代理人
主权项
地址
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