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公开(公告)号:US3312421A
公开(公告)日:1967-04-04
申请号:US46199165
申请日:1965-06-07
Applicant: NORTHERN ELECTRIC CO
Inventor: KERR ROBERT A , WICKHAM STANLEY G
IPC: B65H54/28
CPC classification number: B65H54/2812 , B65H54/28 , B65H54/2866 , B65H2701/31
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公开(公告)号:US3128799A
公开(公告)日:1964-04-14
申请号:US11338561
申请日:1961-05-29
Applicant: NORTHERN ELECTRIC CO
Inventor: KERR ROBERT A
CPC classification number: D07B1/0693 , D07B3/06 , D07B5/10 , D07B7/025 , D07B2201/2004 , D07B2201/2007 , D07B2201/2016 , D07B2201/2017 , D07B2201/2019 , D07B2201/2021
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公开(公告)号:US3091806A
公开(公告)日:1963-06-04
申请号:US13499561
申请日:1961-08-30
Applicant: NORTHERN ELECTRIC CO
Inventor: KERR ROBERT A , RICHARDSON WALTER L , SPRINGFORD WILLIAM R H
CPC classification number: B29C47/28 , B29C47/0014 , B29C47/0016 , B29C47/96
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公开(公告)号:US2706376A
公开(公告)日:1955-04-19
申请号:US43193354
申请日:1954-05-24
Applicant: NORTHERN ELECTRIC CO
Inventor: KERR ROBERT A
CPC classification number: H01B13/0214 , D07B7/022
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