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专利详情
Method of fastening tubes in headers or tube plates
申请公布号：
US2368391(A)
申请号：
US19420444198
申请日期：
1942.05.23
申请公布日期：
1945.01.30
申请人：
YOUNG FRED M
发明人：
YOUNG FRED M.
分类号：
F28F9/18
主分类号：
F28F9/18
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