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经营范围
发明名称
REMOVABLE DRILL PIPE PROTECTOR
摘要
申请公布号
CA627154(A)
申请公布日期
1961.09.12
申请号
CAD627154
申请日期
申请人
BAKER OIL TOOLS
发明人
REUBEN C. BAKER
分类号
主分类号
代理机构
代理人
主权项
地址
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