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发明名称
Méthode et appareil pour réduire en diamètre et allonger des lingots métalliques
摘要
申请公布号
FR830137(A)
申请公布日期
1938.07.21
申请号
FRD830137
申请日期
1937.11.29
申请人
发明人
RICHARD KRAUSE FRANK,
分类号
B21B21/00
主分类号
B21B21/00
代理机构
代理人
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