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发明名称
Fremgangsmåde til lukning af sækkeventiler samt anordning ved sådanne ventiler og redskab til lukning af samme.
摘要
申请公布号
DK71530(C)
申请公布日期
1950.09.25
申请号
DK19450002738
申请日期
1945.12.29
申请人
BILLERUDS AKTIEBOLAG
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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