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发明名称
Unterdecke und Verfahren zu ihrer Herstellung
摘要
申请公布号
DE809097(C)
申请公布日期
1951.07.23
申请号
DE1949P054114
申请日期
1949.09.07
申请人
KARL MAYR
发明人
MAYR KARL
分类号
E04F13/02
主分类号
E04F13/02
代理机构
代理人
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