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经营范围
发明名称
Procédé photomécanique de gravure sur surfaces métalliques
摘要
申请公布号
FR1140108(A)
申请公布日期
1957.07.11
申请号
FRD1140108
申请日期
1956.01.10
申请人
DR. BEKK & KAULEN CHEMISCHE FABRIK G.M.B.H.
发明人
分类号
G03F7/04
主分类号
G03F7/04
代理机构
代理人
主权项
地址
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