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发明名称
GERAEUSCHARMES GASBALLASTVENTIL FUER IN DIE ATMOSPHAERE FOERDERNDE ROTATIONS-VAKUUMPUMPEN.
摘要
申请公布号
DE1843291(U)
申请公布日期
1961.12.14
申请号
DE196100P8943U
申请日期
1961.10.19
申请人
ARTHUR PFEIFFER 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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