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发明名称
Doppelwandiges isolierendes Bauelement
摘要
申请公布号
DE838497(C)
申请公布日期
1952.05.08
申请号
DE1950H002080
申请日期
1950.03.21
申请人
FRANZ HAAS
发明人
HAAS FRANZ
分类号
E04B1/80
主分类号
E04B1/80
代理机构
代理人
主权项
地址
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