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发明名称
摘要
申请公布号
DE7301051(U)
申请公布日期
1973.08.09
申请号
DE19730001051U
申请日期
1973.01.12
申请人
MUELLER L
发明人
分类号
E01F9/011
主分类号
E01F9/011
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代理人
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