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公开(公告)号:US1863048A
公开(公告)日:1932-06-14
申请号:US37125429
申请日:1929-06-15
Applicant: BELL TELEPHONE LABOR INC
Inventor: HAYFORD WALTER S
IPC: H01R43/042
CPC classification number: H01R43/0425 , Y10S403/02 , Y10T29/49929
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公开(公告)号:US1951908A
公开(公告)日:1934-03-20
申请号:US39175729
申请日:1929-09-11
Applicant: BELL TELEPHONE LABOR INC
Inventor: HAYFORD WALTER S
IPC: G01N3/32
CPC classification number: G01N3/32 , G01N2203/0023
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公开(公告)号:US2305473A
公开(公告)日:1942-12-15
申请号:US37044840
申请日:1940-12-17
Applicant: BELL TELEPHONE LABOR INC
Inventor: HAYFORD WALTER S
IPC: H01R9/05
CPC classification number: H01R9/0503 , Y10T29/49872
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公开(公告)号:US1937115A
公开(公告)日:1933-11-28
申请号:US39297329
申请日:1929-09-16
Applicant: BELL TELEPHONE LABOR INC
Inventor: HAYFORD WALTER S , TOWNSEND JOHN R
IPC: G01N3/42
CPC classification number: G01N3/42
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公开(公告)号:US2236392A
公开(公告)日:1941-03-25
申请号:US28335639
申请日:1939-07-08
Applicant: BELL TELEPHONE LABOR INC
Inventor: BARRY JOSEPH F , HARLEY JOSEPH J , HAYFORD WALTER S
IPC: E04G21/08
CPC classification number: E04G21/08
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公开(公告)号:US1845077A
公开(公告)日:1932-02-16
申请号:US45133630
申请日:1930-05-10
Applicant: BELL TELEPHONE LABOR INC
Inventor: DIXON JOHN B , HAYFORD WALTER S
IPC: H01R43/042
CPC classification number: H01R43/0425 , Y10T29/49917 , Y10T29/49929 , Y10T29/49934 , Y10T29/53987
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