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经营范围
发明名称
Air valve
摘要
申请公布号
US1777385(A)
申请公布日期
1930.10.07
申请号
US19280265964
申请日期
1928.03.30
申请人
STOLZ OTTO G
发明人
STOLZ OTTO G.
分类号
F16K15/20
主分类号
F16K15/20
代理机构
代理人
主权项
地址
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