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发明名称
Dispositif pour la fixation des cloches de barbotage
摘要
申请公布号
FR1106833(A)
申请公布日期
1955.12.23
申请号
FRD1106833
申请日期
1954.08.17
申请人
N. V. DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ
发明人
分类号
B01D3/20
主分类号
B01D3/20
代理机构
代理人
主权项
地址
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