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经营范围
发明名称
VENTURI TUBE
摘要
申请公布号
US3520639(A)
申请公布日期
1970.07.14
申请号
USD3520639
申请日期
1968.08.21
申请人
BRITTAIN IND. INC.
发明人
ARNOLD L. HANES
分类号
F04F5/46;(IPC1-7):F04F5/16;F04F5/24;F04F5/44
主分类号
F04F5/46
代理机构
代理人
主权项
地址
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