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发明名称
TREATMENT OF METAL SURFACES
摘要
申请公布号
CA522964(A)
申请公布日期
1956.03.20
申请号
CAD522964
申请日期
申请人
SOCIETA' GENERALE PER LA FOSFATAZIONE S.P.A.
发明人
ERMINIO DE PRETTO
分类号
主分类号
代理机构
代理人
主权项
地址
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