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发明名称
Improvements in valve devices for controlling gas flow
摘要
申请公布号
GB914493(A)
申请公布日期
1963.01.02
申请号
GB19590031216
申请日期
1959.09.14
申请人
HANS VAILLANT
发明人
THOMAS OTTO
分类号
F23N5/10
主分类号
F23N5/10
代理机构
代理人
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地址
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