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发明名称
Perfectionnements aux procédés de soudure des tubes des surchauffeurs et notamment de ceux utilisés sur les locomotives
摘要
申请公布号
FR793929(A)
申请公布日期
1936.02.04
申请号
FRD793929
申请日期
1934.11.09
申请人
发明人
ROCHAT FABIEN, CHARLES, LUCIEN
分类号
B21C37/28
主分类号
B21C37/28
代理机构
代理人
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