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发明名称
Hohlstein bzw. Hohlbalken zur Herstellung von Eisenbetonrippendecken.
摘要
申请公布号
AT133012(B)
申请公布日期
1933.04.25
申请号
ATD133012
申请日期
1931.09.22
申请人
OESTERREICHISCH-UNGARISCHE BAUGESELLSCHAFT
发明人
分类号
主分类号
代理机构
代理人
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