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经营范围
发明名称
PIPE COLLAR WITH CORRUGATED-TYPE INSERT.
摘要
申请公布号
AU1997470(A)
申请公布日期
1972.03.16
申请号
AU19700019974
申请日期
1970.09.15
申请人
BYRON JACKSON, INC.
发明人
LAWRENCE E. FULLER
分类号
E21B17/10;(IPC1-7):E21B
主分类号
E21B17/10
代理机构
代理人
主权项
地址
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