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发明名称
Draft damper closer
摘要
申请公布号
US1950755(A)
申请公布日期
1934.03.13
申请号
US19310517703
申请日期
1931.02.24
申请人
HOLLAND FURNACE COMPANY
发明人
SELBY CHARLES M.
分类号
F23M11/02
主分类号
F23M11/02
代理机构
代理人
主权项
地址
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