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发明名称
摘要
申请公布号
DE8912358(U1)
申请公布日期
1990.08.16
申请号
DE19890012358U
申请日期
1989.10.18
申请人
SCHWERDFEGER, HORST W., 4600 DORTMUND, DE
发明人
分类号
E04H1/12
主分类号
E04H1/12
代理机构
代理人
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