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公开(公告)号:US1856878A
公开(公告)日:1932-05-03
申请号:US49299630
申请日:1930-11-03
Applicant: LOUIS LUDWIG
Inventor: LOUIS LUDWIG
IPC: H01H61/06
CPC classification number: H01H61/063
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公开(公告)号:US2595799A
公开(公告)日:1952-05-06
申请号:US11858949
申请日:1949-09-29
Applicant: LOUIS LUDWIG
Inventor: LOUIS LUDWIG
IPC: H01R33/94
CPC classification number: H01R33/94
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公开(公告)号:US2579841A
公开(公告)日:1951-12-25
申请号:US75965347
申请日:1947-07-08
Applicant: LOUIS LUDWIG
Inventor: LOUIS LUDWIG
IPC: H02G3/18
CPC classification number: H02G3/18
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公开(公告)号:US2464876A
公开(公告)日:1949-03-22
申请号:US67587246
申请日:1946-06-11
Applicant: LOUIS LUDWIG
Inventor: LOUIS LUDWIG
IPC: H01R33/94
CPC classification number: H01R33/94
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公开(公告)号:US2321035A
公开(公告)日:1943-06-08
申请号:US37777241
申请日:1941-02-07
Applicant: LOUIS LUDWIG
Inventor: LOUIS LUDWIG
CPC classification number: F21V19/00 , F21V27/00 , F21Y2103/00
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公开(公告)号:US2237355A
公开(公告)日:1941-04-08
申请号:US31808940
申请日:1940-02-09
Applicant: LOUIS LUDWIG
Inventor: LOUIS LUDWIG
IPC: F21V33/00
CPC classification number: F21V33/00
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公开(公告)号:US2093085A
公开(公告)日:1937-09-14
申请号:US2237535
申请日:1935-05-20
Applicant: LOUIS LUDWIG
Inventor: LOUIS LUDWIG
IPC: H01H21/28
CPC classification number: H01H21/282
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48.
公开(公告)号:US2087918A
公开(公告)日:1937-07-27
申请号:US66509233
申请日:1933-04-08
Applicant: LOUIS LUDWIG
Inventor: LOUIS LUDWIG
CPC classification number: H01R24/76 , H01R2103/00
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公开(公告)号:US2055202A
公开(公告)日:1936-09-22
申请号:US4204735
申请日:1935-09-25
Applicant: LOUIS LUDWIG
Inventor: LOUIS LUDWIG
IPC: F23Q7/00
CPC classification number: F23Q7/00 , Y10T24/4095
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公开(公告)号:US2050438A
公开(公告)日:1936-08-11
申请号:US75328534
申请日:1934-11-16
Applicant: LOUIS LUDWIG
Inventor: LOUIS LUDWIG
IPC: F21S8/04 , F21V21/088
CPC classification number: F21S8/04 , F21V21/088
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