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公开(公告)号:US2655614A
公开(公告)日:1953-10-13
申请号:US16422850
申请日:1950-05-25
Applicant: MACHLETT LAB INC
Inventor: DOOLITTLE HOWARD D , ZARTH WILLIAM A , RHEAUME RAYMOND H
IPC: H01J21/06
CPC classification number: H01J21/065
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2.
公开(公告)号:US2770033A
公开(公告)日:1956-11-13
申请号:US23145751
申请日:1951-06-14
Applicant: MACHLETT LAB INC
Inventor: ZARTH WILLIAM A
IPC: H01J5/18
CPC classification number: H01J5/18
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