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发明名称
Vorrichtung zum Fortrollen von Stehleitern in der Arbeitsstellung
摘要
申请公布号
DE537641(C)
申请公布日期
1931.11.06
申请号
DED537641D
申请日期
申请人
SEVERIN BOBKIEWICZ JUN.
发明人
分类号
E06C1/397
主分类号
E06C1/397
代理机构
代理人
主权项
地址
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