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发明名称
KANALABDECKUNG
摘要
申请公布号
DE7134865(U)
申请公布日期
1971.12.02
申请号
DE19710034865U
申请日期
1971.09.14
申请人
N V V H TECHNISCH BUREAU J
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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