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发明名称
HOHLKOERPER ZUR HERSTELLUNG VON EISENBETONRIPPENDECKEN.
摘要
申请公布号
DE1618386(U)
申请公布日期
1950.12.28
申请号
DE19491618386U
申请日期
1949.07.14
申请人
HERMANN HANEKAMP
发明人
HERMANN HANEKAMP
分类号
主分类号
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