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发明名称
Stair structure for tanks
摘要
申请公布号
US2085839(A)
申请公布日期
1937.07.06
申请号
US19350048598
申请日期
1935.11.06
申请人
THE ATLANTIC REFINING COMPANY
发明人
DYKE JOHN W. VAN
分类号
E04F11/022
主分类号
E04F11/022
代理机构
代理人
主权项
地址
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