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发明名称
Soaking pit cover with protected sealing means
摘要
申请公布号
US2539421(A)
申请公布日期
1951.01.30
申请号
US19460712148
申请日期
1946.11.25
申请人
M. H. DETRICK COMPANY
发明人
HIGGINS ROBERT W.
分类号
C21D9/70
主分类号
C21D9/70
代理机构
代理人
主权项
地址
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