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发明名称
Heat exchanger
摘要
申请公布号
US1972706(A)
申请公布日期
1934.09.04
申请号
US19310567152
申请日期
1931.10.06
申请人
S. R. DRESSER MANUFACTURING COMPANY
发明人
ENGELMAN ROBERT C.
分类号
F28F1/30
主分类号
F28F1/30
代理机构
代理人
主权项
地址
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