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发明名称
OPPHENTBAR ROERSIKKERHETSVENTIL
摘要
申请公布号
NO834048(A)
申请公布日期
1980.05.14
申请号
NO19830004048
申请日期
1983.11.07
申请人
OTIS ENGINEERING CORP,
发明人
YONKER, JOHN H.,;PEARCE, JOSEPH L.,;DEATON, THOMAS M,;BILLS, DAVID,
分类号
E21B;E21B34/10;(IPC1-7):E21B/
主分类号
E21B
代理机构
代理人
主权项
地址
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