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发明名称
Method of protecting pipe lines
摘要
申请公布号
US2161036(A)
申请公布日期
1939.06.06
申请号
US19360103328
申请日期
1936.09.30
申请人
UNITED STATES RUBBER COMPANY
发明人
GREMMEL HENRY F.;RICE HAROLD D.
分类号
F16L58/16
主分类号
F16L58/16
代理机构
代理人
主权项
地址
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