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经营范围
发明名称
Sicherheitsventil mit Gegendruckkammer und Hilfsventil
摘要
申请公布号
DE499097(C)
申请公布日期
1930.06.04
申请号
DE1929S092377D
申请日期
1929.06.23
申请人
SOCIETE ANONYME DES ETABLISSEMENTS JULES COCARD
发明人
分类号
F22B37/42
主分类号
F22B37/42
代理机构
代理人
主权项
地址
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