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发明名称
Vacuum gauge
摘要
申请公布号
US2669124(A)
申请公布日期
1954.02.16
申请号
US19480010747
申请日期
1948.02.25
申请人
GENERAL ELECTRIC COMPANY
发明人
ROBERTS JOHN A.
分类号
G01L21/00
主分类号
G01L21/00
代理机构
代理人
主权项
地址
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