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经营范围
发明名称
Improvements in ventilators
摘要
申请公布号
GB448285(A)
申请公布日期
1936.06.05
申请号
GB19350006534
申请日期
1935.03.01
申请人
WILFRED SOUTHEY RAMKE
发明人
分类号
F23L17/02
主分类号
F23L17/02
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代理人
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