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经营范围
发明名称
RUECKSAUGVENTIL.
摘要
申请公布号
DE1787317(U)
申请公布日期
1959.04.23
申请号
DE195700SC630U
申请日期
1957.08.17
申请人
SCHWELMER EISENWERK MUELLER & CO. G.M.B.H.
发明人
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主分类号
代理机构
代理人
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