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发明名称
Ventilator fitting
摘要
申请公布号
US1921457(A)
申请公布日期
1933.08.08
申请号
US19310578704
申请日期
1931.12.03
申请人
NEWPORT NEWS SHIPBUILDING AND DRY DOCK COMPANY
发明人
DICKINSON JOSEPH R.
分类号
F24F13/062
主分类号
F24F13/062
代理机构
代理人
主权项
地址
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