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经营范围
发明名称
VAPOR LIQUID CONTACT TRAY
摘要
申请公布号
CA593237(A)
申请公布日期
1960.02.23
申请号
CAD593237
申请日期
申请人
JOHN F. MIDDLETON
发明人
JOHN F. MIDDLETON
分类号
主分类号
代理机构
代理人
主权项
地址
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