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发明名称
EINTEILIGE EINSCHUBTREPPE.
摘要
申请公布号
DE1717435(U)
申请公布日期
1956.02.23
申请号
DE195500W4365U
申请日期
1955.12.10
申请人
HEINRICH WESTPHALEN
发明人
HEINRICH WESTPHALEN
分类号
主分类号
代理机构
代理人
主权项
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