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公开(公告)号:US2854501A
公开(公告)日:1958-09-30
申请号:US41708554
申请日:1954-03-18
Applicant: LOUIS LUDWIG
Inventor: LOUIS LUDWIG
IPC: H02B1/044
CPC classification number: H02B1/044
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公开(公告)号:US2534361A
公开(公告)日:1950-12-19
申请号:US71031846
申请日:1946-11-16
Applicant: LOUIS LUDWIG
Inventor: LOUIS LUDWIG
CPC classification number: F21S8/04 , F21V15/01 , F21V19/0085 , F21V23/026 , F21Y2103/00 , Y02B20/386
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公开(公告)号:US2506304A
公开(公告)日:1950-05-02
申请号:US68767746
申请日:1946-08-01
Applicant: LOUIS LUDWIG
Inventor: LOUIS LUDWIG
IPC: H01H85/10
CPC classification number: H01H85/10
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公开(公告)号:US2462879A
公开(公告)日:1949-03-01
申请号:US53162344
申请日:1944-04-18
Applicant: LOUIS LUDWIG
Inventor: LOUIS LUDWIG
IPC: H01R24/20
CPC classification number: H01R24/20 , H01R2103/00
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公开(公告)号:US2232464A
公开(公告)日:1941-02-18
申请号:US32460740
申请日:1940-03-18
Applicant: LOUIS LUDWIG
Inventor: LOUIS LUDWIG
IPC: F21V21/10
CPC classification number: F21V21/10 , Y10T403/7123
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公开(公告)号:US2142362A
公开(公告)日:1939-01-03
申请号:US18036337
申请日:1937-12-17
Applicant: LOUIS LUDWIG
Inventor: LOUIS LUDWIG
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公开(公告)号:US2142361A
公开(公告)日:1939-01-03
申请号:US2346535
申请日:1935-05-25
Applicant: LOUIS LUDWIG
Inventor: LOUIS LUDWIG
IPC: H01H85/045
CPC classification number: H01H85/0454
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公开(公告)号:US1876705A
公开(公告)日:1932-09-13
申请号:US51440231
申请日:1931-02-09
Applicant: LOUIS LUDWIG
Inventor: LOUIS LUDWIG
IPC: H01R13/70
CPC classification number: H01R13/70
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公开(公告)号:US2975392A
公开(公告)日:1961-03-14
申请号:US78917259
申请日:1959-01-26
Applicant: LOUIS LUDWIG
Inventor: LOUIS LUDWIG
IPC: F21V19/00 , F21V21/002 , H01R4/24
CPC classification number: F21V21/002 , F21V19/00 , H01R4/2404
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公开(公告)号:US2945098A
公开(公告)日:1960-07-12
申请号:US82016959
申请日:1959-06-15
Applicant: LOUIS LUDWIG
Inventor: LOUIS LUDWIG
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