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发明名称
DICHTUNG MIT VERAENDERLICHEM QUERSCHNITTVOLUMEN.
摘要
申请公布号
DE1750650(U)
申请公布日期
1957.08.14
申请号
DE195700B8291U
申请日期
1957.01.22
申请人
BLASS & CO. G.M.B.H.
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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