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发明名称
Treppe mit Steinstufen in einem Gebäude
摘要
申请公布号
CH486621(A)
申请公布日期
1970.02.28
申请号
CH19690004624
申请日期
1969.03.27
申请人
WACHENFELD,WALTER
发明人
WACHENFELD,WALTER
分类号
E04F11/022;G01R1/28;H03M1/00;(IPC1-7):E04F11/14
主分类号
E04F11/022
代理机构
代理人
主权项
地址
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