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公开(公告)号:US1836829A
公开(公告)日:1931-12-15
申请号:US27062928
申请日:1928-04-17
Applicant: BELL TELEPHONE LABOR INC
Inventor: WEINHART HOWARD W
CPC classification number: H01J29/485 , H01J29/861
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公开(公告)号:US2277423A
公开(公告)日:1942-03-24
申请号:US39392241
申请日:1941-05-17
Applicant: BELL TELEPHONE LABOR INC
Inventor: WEINHART HOWARD W
IPC: H01J19/42
CPC classification number: H01J19/42 , H01J2893/0002
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公开(公告)号:US2207841A
公开(公告)日:1940-07-16
申请号:US64422132
申请日:1932-11-25
Applicant: BELL TELEPHONE LABOR INC
Inventor: WEINHART HOWARD W
IPC: H01J29/82
CPC classification number: H01J29/82
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公开(公告)号:US2185283A
公开(公告)日:1940-01-02
申请号:US9692536
申请日:1936-08-20
Applicant: BELL TELEPHONE LABOR INC
Inventor: WEINHART HOWARD W
IPC: H01J29/48
CPC classification number: H01J29/488 , H01J29/48
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公开(公告)号:US2021276A
公开(公告)日:1935-11-19
申请号:US66429033
申请日:1933-04-04
Applicant: BELL TELEPHONE LABOR INC
Inventor: WEINHART HOWARD W
IPC: C03B23/06 , C03B23/207 , C03B37/15
CPC classification number: C03B37/15 , C03B23/06 , C03B23/207
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公开(公告)号:US1986656A
公开(公告)日:1935-01-01
申请号:US63874832
申请日:1932-10-20
Applicant: BELL TELEPHONE LABOR INC
Inventor: WEINHART HOWARD W
IPC: H01J5/26
CPC classification number: H01J5/26 , H01J2893/0043 , Y10T403/479
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