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发明名称
Floating roof for liquid storage tanks
摘要
申请公布号
US1990627(A)
申请公布日期
1935.02.12
申请号
US19310540295
申请日期
1931.05.27
申请人
WIGGINS JOHN H
发明人
WIGGINS JOHN H.
分类号
B65D88/34
主分类号
B65D88/34
代理机构
代理人
主权项
地址
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