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发明名称
Perfectionnements apportés aux tuiles à recouvrement en matériaux de toute nature
摘要
申请公布号
FR939595(A)
申请公布日期
1948.11.18
申请号
FRD939595
申请日期
1947.01.08
申请人
发明人
POURON FERNAND
分类号
E04D1/04
主分类号
E04D1/04
代理机构
代理人
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