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发明名称
Bodentreppe mit gegenlaeufig bewegbaren Lukenklappen
摘要
申请公布号
DE1143005(B)
申请公布日期
1963.01.31
申请号
DE1960SC28357
申请日期
1960.08.19
申请人
PETER SCHROEDERS
发明人
SCHROEDERS PETER
分类号
E04F11/04
主分类号
E04F11/04
代理机构
代理人
主权项
地址
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