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公开(公告)号:US2527134A
公开(公告)日:1950-10-24
申请号:US78593547
申请日:1947-11-14
Applicant: BELL TELEPHONE LABOR INC
Inventor: JOHNSON JOHN B
IPC: H01J9/22
CPC classification number: H01J9/221
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公开(公告)号:US2434930A
公开(公告)日:1948-01-27
申请号:US56606244
申请日:1944-12-01
Applicant: BELL TELEPHONE LABOR INC
Inventor: JOHNSON JOHN B
IPC: H01J29/43
CPC classification number: H01J29/43
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公开(公告)号:US2250529A
公开(公告)日:1941-07-29
申请号:US25589939
申请日:1939-02-11
Applicant: BELL TELEPHONE LABOR INC
Inventor: FRANK GRAY , JOHNSON JOHN B
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公开(公告)号:US2155192A
公开(公告)日:1939-04-18
申请号:US46606730
申请日:1930-07-07
Applicant: BELL TELEPHONE LABOR INC
Inventor: JOHNSON JOHN B
IPC: H01J29/52
CPC classification number: H01J29/52
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公开(公告)号:US1778751A
公开(公告)日:1930-10-21
申请号:US26642328
申请日:1928-03-31
Applicant: BELL TELEPHONE LABOR INC
Inventor: BUCKLEY OLIVER E , JOHNSON JOHN B
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6.Method and apparatus for making mosaic targets for electron beams 失效
Title translation: 用于制作电子束镶嵌目标的方法和装置公开(公告)号:US2463180A
公开(公告)日:1949-03-01
申请号:US48496643
申请日:1943-04-29
Applicant: BELL TELEPHONE LABOR INC
Inventor: JOHNSON JOHN B
IPC: H01J29/43
CPC classification number: H01J29/43
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公开(公告)号:US2434931A
公开(公告)日:1948-01-27
申请号:US56606344
申请日:1944-12-01
Applicant: BELL TELEPHONE LABOR INC
Inventor: JOHNSON JOHN B
IPC: H01J29/43
CPC classification number: H01J29/43
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公开(公告)号:US2063314A
公开(公告)日:1936-12-08
申请号:US70410233
申请日:1933-12-27
Applicant: BELL TELEPHONE LABOR INC
Inventor: JOHNSON JOHN B , WEINHART HOWARD W
IPC: H01J31/12
CPC classification number: H01J31/12 , Y10T74/18144
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公开(公告)号:US1912146A
公开(公告)日:1933-05-30
申请号:US34962829
申请日:1929-03-25
Applicant: BELL TELEPHONE LABOR INC
Inventor: JOHNSON JOHN B
IPC: H01J17/00
CPC classification number: H01J17/00 , H01J2893/0064
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公开(公告)号:US2544755A
公开(公告)日:1951-03-13
申请号:US508448
申请日:1948-01-29
Applicant: BELL TELEPHONE LABOR INC
Inventor: JOHNSON JOHN B , MCKAY KENNETH G
IPC: H01J31/30
CPC classification number: H01J31/30 , Y10S313/07 , Y10S315/07
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