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发明名称
échangeur de chaleur tubulaire et procédé de fabrication de celui-ci
摘要
申请公布号
FR969635(A)
申请公布日期
1950.12.22
申请号
FRD969635
申请日期
1948.07.19
申请人
发明人
JANTSCH EMIL
分类号
F28F1/08
主分类号
F28F1/08
代理机构
代理人
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