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经营范围
发明名称
Ridge ventilator
摘要
申请公布号
GB441196(A)
申请公布日期
1936.01.13
申请号
GB19340017184
申请日期
1934.06.11
申请人
WILLIAM MORGAN DAVIES
发明人
分类号
F24F7/02
主分类号
F24F7/02
代理机构
代理人
主权项
地址
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