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公开(公告)号：US2506414A
公开(公告)日：1950-05-02
申请号：US78984547
申请日：1947-12-05
Applicant: BELL TELEPHONE LABOR INC
Inventor： ELLWOOD WALTER B
CPC classification number: H01B1/02 , H01H1/0201 , H01H11/005 , Y10S65/06 , Y10S428/929 , Y10T29/49105 , Y10T29/49146 , Y10T29/49202
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公开(公告)号：US2461202A
公开(公告)日：1949-02-08
申请号：US58529145
申请日：1945-03-28
Applicant: BELL TELEPHONE LABOR INC
Inventor： ELLWOOD WALTER B
IPC: G01R33/038
CPC classification number: G01R33/038
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公开(公告)号：US2421021A
公开(公告)日：1947-05-27
申请号：US58067045
申请日：1945-03-02
Applicant: BELL TELEPHONE LABOR INC
Inventor： ELLWOOD WALTER B
IPC: B23K11/31
CPC classification number: B23K11/31
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公开(公告)号：US2302537A
公开(公告)日：1942-11-17
申请号：US41163341
申请日：1941-09-20
Applicant: BELL TELEPHONE LABOR INC
Inventor： ELLWOOD WALTER B
IPC: H01H51/28
CPC classification number: H01H51/281
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公开(公告)号：US3242557A
公开(公告)日：1966-03-29
申请号：US20636662
申请日：1962-06-29
Applicant: BELL TELEPHONE LABOR INC
Inventor： ELLWOOD WALTER B
IPC: H01H11/00
CPC classification number: H01H11/005 , Y10S65/06 , Y10S65/12 , Y10T29/49105 , Y10T29/49758
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Patent Agency Ranking
公开(公告)号：US3190984A
公开(公告)日：1965-06-22
申请号：US26012263
申请日：1963-02-21
Applicant: BELL TELEPHONE LABOR INC
Inventor： ELLWOOD WALTER B
IPC: H01H51/28
CPC classification number: H01H51/284
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公开(公告)号：US3134908A
公开(公告)日：1964-05-26
申请号：US82663759
申请日：1959-07-13
Applicant: BELL TELEPHONE LABOR INC
Inventor： ELLWOOD WALTER B
IPC: H01H51/27
CPC classification number: H01H51/27
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公开(公告)号：US3032628A
公开(公告)日：1962-05-01
申请号：US82294659
申请日：1959-06-25
Applicant: BELL TELEPHONE LABOR INC
Inventor： ELLWOOD WALTER B
CPC classification number: H01H11/005 , H01H51/28 , Y10T29/49073 , Y10T29/49105
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公开(公告)号：US2653199A
公开(公告)日：1953-09-22
申请号：US5852248
申请日：1948-11-05
Applicant: BELL TELEPHONE LABOR INC
Inventor： BROWN JOHN T L , ELLWOOD WALTER B
IPC: H01H51/28
CPC classification number: H01H51/287 , Y10T29/49105
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公开(公告)号：US2648167A
公开(公告)日：1953-08-11
申请号：US6608448
申请日：1948-12-18
Applicant: BELL TELEPHONE LABOR INC
Inventor： ELLWOOD WALTER B
IPC: H01H11/00
CPC classification number: H01H11/005 , Y10S65/12 , Y10T29/49105 , Y10T29/53248
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