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发明名称
Relief valve or trap
摘要
申请公布号
US1775637(A)
申请公布日期
1930.09.16
申请号
US19290362651
申请日期
1929.05.13
申请人
CHADEAYNE GEORGE D
发明人
CHADEAYNE GEORGE D.
分类号
F24D19/08
主分类号
F24D19/08
代理机构
代理人
主权项
地址
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