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经营范围
发明名称
Barometric draft regulator
摘要
申请公布号
US2801056(A)
申请公布日期
1957.07.30
申请号
US19540460942
申请日期
1954.10.07
申请人
AMY FIELD AND CITY NATIONAL BA
发明人
AMY FIELD AND CITY NATIONAL BANK AND T
分类号
F23L11/02;G05D16/18
主分类号
F23L11/02
代理机构
代理人
主权项
地址
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