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经营范围
发明名称
Air valve
摘要
申请公布号
US2414189(A)
申请公布日期
1947.01.14
申请号
US19430506166
申请日期
1943.10.14
申请人
CHRISTIANSEN WALTER G
发明人
CHRISTIANSEN WALTER G.
分类号
F16K24/04;F24D19/08
主分类号
F16K24/04
代理机构
代理人
主权项
地址
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