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发明名称
Procédé et dispositif pour l'obtention, sur les matières, de dessins pénétrant à une certaine profondeur.
摘要
申请公布号
CH160233(A)
申请公布日期
1933.02.28
申请号
CHD160233
申请日期
1932.01.22
申请人
SOCIETE A RESPONSABILITE LIMITEE DES BREVETS ETRANGERS DE LA NEOXYLE
发明人
SOCIETE A RESPONSABILITE LIMITEE DES BREVETS ETRANGERS DE LA NEOXYLE
分类号
主分类号
代理机构
代理人
主权项
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