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发明名称
Revêtement pour marches d'escalier avec cornière de protection du bord d'attaque munie d'une aile d'appui perforée
摘要
申请公布号
FR739051(A)
申请公布日期
1933.01.05
申请号
FRD739051
申请日期
1932.06.24
申请人
发明人
LEHMANN WILHELM
分类号
E04F11/16
主分类号
E04F11/16
代理机构
代理人
主权项
地址
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