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发明名称
OPTO-ELECTRONIC LIQUID LEVEL SENSOR FOR MAINTAINING A STABLE REFERENCE
摘要
申请公布号
US3569716(A)
申请公布日期
1971.03.09
申请号
USD3569716
申请日期
1968.06.03
申请人
ARMY USA
发明人
VIRGIL DENNIS LEWIS
分类号
G01F23/292;G05D9/12;(IPC1-7):G01J1/32
主分类号
G01F23/292
代理机构
代理人
主权项
地址
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