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发明名称
Procédé de fabrication de papier imperméable par imprégnation de la pâte avec de la paraffine
摘要
申请公布号
FR927669(A)
申请公布日期
1947.11.05
申请号
FRD927669
申请日期
1946.06.05
申请人
发明人
LORENZO PIETRO DI
分类号
D21H17/60
主分类号
D21H17/60
代理机构
代理人
主权项
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