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发明名称
Anordning ved Afspærringsorganer til Rørledbninger.
摘要
申请公布号
DK63446(C)
申请公布日期
1945.04.30
申请号
DK19410001158
申请日期
1941.06.17
申请人
EDVARD DANIEL HANSEN
发明人
EDVARD DANIEL HANSEN
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主分类号
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