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经营范围
发明名称
PEL-PAKNING.
摘要
申请公布号
NO803808(A)
申请公布日期
1981.08.31
申请号
NO19800003808
申请日期
1980.12.17
申请人
HALLIBURTON CO,
发明人
STREICH, STEVEN GEORGE,
分类号
E02B17/00;(IPC1-7):E02B/;E02D/
主分类号
E02B17/00
代理机构
代理人
主权项
地址
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