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发明名称
SIKKERHETSVENTIL FOR BROENNER
摘要
申请公布号
NO834366(A)
申请公布日期
1984.05.30
申请号
NO19830004366
申请日期
1983.11.28
申请人
COMP FRANCAISE DES PETROLES,
发明人
HELDERLE, PAUL,
分类号
E21B23/02;E21B34/00;E21B34/10;(IPC1-7):E21B/
主分类号
E21B23/02
代理机构
代理人
主权项
地址
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