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经营范围
发明名称
PIPE HOLDER
摘要
申请公布号
CA729029(A)
申请公布日期
1966.03.01
申请号
CAD729029
申请日期
申请人
WALKER MANUFACTURING COMPANY
发明人
FRANK R. SMITH;JOHN D. HOPKINS
分类号
主分类号
代理机构
代理人
主权项
地址
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