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发明名称
Air control ring
摘要
申请公布号
US2657741(A)
申请公布日期
1953.11.03
申请号
US19480037178
申请日期
1948.07.06
申请人
BRIERLY RALPH C
发明人
BRIERLY RALPH C.
分类号
F23C7/00
主分类号
F23C7/00
代理机构
代理人
主权项
地址
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