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发明名称
Improvements in or relating to valves
摘要
申请公布号
GB421400(A)
申请公布日期
1934.12.18
申请号
GB19330008286
申请日期
1933.03.18
申请人
PAUL CARPENTER
发明人
分类号
F16K5/22
主分类号
F16K5/22
代理机构
代理人
主权项
地址
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