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发明名称
Einrichtung an Gebaeuden, insbesondere an Schulen, zur Umwandlung geschlossener Raeume in offene
摘要
申请公布号
DE548234(C)
申请公布日期
1932.04.13
申请号
DE1928M104269D
申请日期
1928.04.04
申请人
WILLEM A. MAAS
发明人
分类号
E04H3/08
主分类号
E04H3/08
代理机构
代理人
主权项
地址
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