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发明名称
Metallic ventilated cap for smoke stacks
摘要
申请公布号
US1930050(A)
申请公布日期
1933.10.10
申请号
US19320600717
申请日期
1932.03.23
申请人
JACOB HILT
发明人
HILT JACOB
分类号
F23L17/02
主分类号
F23L17/02
代理机构
代理人
主权项
地址
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