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经营范围
发明名称
Запорное устройство
摘要
申请公布号
RU449614(C)
申请公布日期
2006.05.10
申请号
SU19721818308
申请日期
1972.07.31
申请人
发明人
分类号
F16K31/36;F16K31/42
主分类号
F16K31/36
代理机构
代理人
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地址
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