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经营范围
发明名称
Procédé pour la gravure de pièces métalliques
摘要
申请公布号
FR1070252(A)
申请公布日期
1954.07.21
申请号
FRD1070252
申请日期
1953.02.02
申请人
发明人
BOURQUIN ROLAND
分类号
C23F1/02
主分类号
C23F1/02
代理机构
代理人
主权项
地址
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