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发明名称
Method of servicing underground liquefied petroleum gas tanks during cold weather
摘要
申请公布号
US2331879(A)
申请公布日期
1943.10.19
申请号
US19400314311
申请日期
1940.01.17
申请人
SOUTHERN STEEL COMPANY
发明人
WHITE LOYD J.
分类号
B60P3/22;B67D7/80
主分类号
B60P3/22
代理机构
代理人
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地址
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