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发明名称
Soudure électrique d'acier doux sur acier dur
摘要
申请公布号
FR811144(A)
申请公布日期
1937.04.07
申请号
FRD811144
申请日期
1935.12.26
申请人
发明人
POULAIN ANDRE PAUL
分类号
B23K11/16
主分类号
B23K11/16
代理机构
代理人
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