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发明名称
Vacuum lock
摘要
申请公布号
US3073951(A)
申请公布日期
1963.01.15
申请号
US19600045891
申请日期
1960.07.28
申请人
COMBUSTION ENGINEERING, INC.
发明人
BURDG CHARLES E.
分类号
H01J9/38;H01J9/385;H01J49/04;H01J49/26
主分类号
H01J9/38
代理机构
代理人
主权项
地址
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