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发明名称
Tube switch
摘要
申请公布号
US2257900(A)
申请公布日期
1941.10.07
申请号
US19370177536
申请日期
1937.12.01
申请人
MINNEAPOLIS-HONEYWELL REGULATOR COMPANY
发明人
CRUM STEPHEN
分类号
H01H51/28
主分类号
H01H51/28
代理机构
代理人
主权项
地址
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