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公开(公告)号:US1852162A
公开(公告)日:1932-04-05
申请号:US34525829
申请日:1929-03-08
Applicant: BELL TELEPHONE LABOR INC
Inventor: HARRIS JAMES E , WHITE JOHN H
CPC classification number: C22B15/006
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公开(公告)号:US1787606A
公开(公告)日:1931-01-06
申请号:US41086129
申请日:1929-11-30
Applicant: BELL TELEPHONE LABOR INC
Inventor: WHITE JOHN H , LEGG VICTOR E
IPC: B22F9/04
CPC classification number: B22F9/04 , Y10T29/49076
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公开(公告)号:US2347817A
公开(公告)日:1944-05-02
申请号:US41115641
申请日:1941-09-17
Applicant: BELL TELEPHONE LABOR INC
Inventor: FINCH OSCAR J , WHITE JOHN H
CPC classification number: C22C38/08
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4.Workable magnetic compositions containing principally iron and cobalt 失效
Title translation: 主要含铁和钴的可用的磁性组合物公开(公告)号:US1862559A
公开(公告)日:1932-06-14
申请号:US55713231
申请日:1931-08-14
Applicant: BELL TELEPHONE LABOR INC
Inventor: WHITE JOHN H , WAHL CHARLES V
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公开(公告)号:US2349857A
公开(公告)日:1944-05-30
申请号:US50609243
申请日:1943-10-13
Applicant: BELL TELEPHONE LABOR INC
Inventor: FINCH OSCAR J , WHITE JOHN H
IPC: C21D8/12
CPC classification number: C21D8/12
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公开(公告)号:US1785060A
公开(公告)日:1930-12-16
申请号:US15511426
申请日:1926-12-15
Applicant: BELL TELEPHONE LABOR INC
Inventor: WHITE JOHN H
IPC: C22C19/00
CPC classification number: C22C19/00
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公开(公告)号:US1739052A
公开(公告)日:1929-12-10
申请号:US33643129
申请日:1929-01-31
Applicant: BELL TELEPHONE LABOR INC
Inventor: WHITE JOHN H
IPC: B22F9/04
CPC classification number: B22F9/04 , B22F2009/041
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公开(公告)号:US1700460A
公开(公告)日:1929-01-29
申请号:US15511326
申请日:1926-12-15
Applicant: BELL TELEPHONE LABOR INC
Inventor: WHITE JOHN H
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