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发明名称
Jærnbetonbjælke.
摘要
申请公布号
DK47781(C)
申请公布日期
1933.09.18
申请号
DKD47781
申请日期
1932.10.26
申请人
KRISTIAN HINDHEDE
发明人
KRISTIAN HINDHEDE
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主分类号
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