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经营范围
发明名称
Improvements in or relating to hand-operated valves
摘要
申请公布号
GB724171(A)
申请公布日期
1955.02.16
申请号
GB19500010929
申请日期
1950.05.03
申请人
ALOIS VOGT
发明人
分类号
F16K31/528
主分类号
F16K31/528
代理机构
代理人
主权项
地址
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