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发明名称
BUBBLER METHOD AND APPARATUS
摘要
申请公布号
US3613456(A)
申请公布日期
1971.10.19
申请号
USD3613456
申请日期
1969.07.25
申请人
DRESSER INDUSTRIES INC.
发明人
DIETER H. HOPFE;WILLIAM P. WILSON SR.
分类号
G01F23/16;G01N9/28;(IPC1-7):G01F23/14
主分类号
G01F23/16
代理机构
代理人
主权项
地址
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