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发明名称
DISPOSITIF D'OBTURATION DE CORPS CYLINDRIQUES
摘要
申请公布号
PT70880(A)
申请公布日期
1980.03.01
申请号
PT19800070880
申请日期
1980.02.29
申请人
NEYRPIC SOCIETE ANONYME
发明人
分类号
F16L55/136;G01M3/02;(IPC1-7):F16L/
主分类号
F16L55/136
代理机构
代理人
主权项
地址
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