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公开(公告)号:US1954950A
公开(公告)日:1934-04-17
申请号:US54086631
申请日:1931-05-29
Applicant: BELL TELEPHONE LABOR INC
Inventor: RUSSELL ALEXANDER G
CPC classification number: C23C14/541 , C23C14/34
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公开(公告)号:US1994668A
公开(公告)日:1935-03-19
申请号:US66373133
申请日:1933-03-31
Applicant: BELL TELEPHONE LABOR INC
Inventor: RUSSELL ALEXANDER G
IPC: G11B3/70
CPC classification number: G11B3/70 , Y10S428/935 , Y10T428/12875
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公开(公告)号:US1960029A
公开(公告)日:1934-05-22
申请号:US57601831
申请日:1931-11-19
Applicant: BELL TELEPHONE LABOR INC
Inventor: RUSSELL ALEXANDER G
IPC: C25C1/24
CPC classification number: C25C1/24
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公开(公告)号:US2067502A
公开(公告)日:1937-01-12
申请号:US74004234
申请日:1934-08-16
Applicant: BELL TELEPHONE LABOR INC
Inventor: POLLARD CHARLES E , RUSSELL ALEXANDER G
IPC: G11B3/70
CPC classification number: G11B3/70 , Y10S425/81
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公开(公告)号:US2018471A
公开(公告)日:1935-10-22
申请号:US73142434
申请日:1934-06-20
Applicant: BELL TELEPHONE LABOR INC
Inventor: RUSSELL ALEXANDER G
IPC: C25D1/10
CPC classification number: C25D1/10
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公开(公告)号:US1733608A
公开(公告)日:1929-10-29
申请号:US29825728
申请日:1928-08-08
Applicant: BELL TELEPHONE LABOR INC
Inventor: KNOX WILLIAM G , RUSSELL ALEXANDER G
IPC: G11B3/48
CPC classification number: G11B3/48
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