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公开(公告)号:US2294711A
公开(公告)日:1942-09-01
申请号:US40483441
申请日:1941-07-31
Applicant: DITTO INC
Inventor: JOHAN BJORKSTEN
IPC: B41M5/04
CPC classification number: B41M5/04
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公开(公告)号:US2288152A
公开(公告)日:1942-06-30
申请号:US39170741
申请日:1941-05-03
Applicant: DITTO INC
Inventor: JOHAN BJORKSTEN
IPC: B41M5/08
CPC classification number: B41M5/08 , Y10T428/31928
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3.Hectograph composition and blanket and method of preparing same 失效
Title translation: Hectograph成分和毯子及其制备方法公开(公告)号:US2281261A
公开(公告)日:1942-04-28
申请号:US37561641
申请日:1941-01-23
Applicant: DITTO INC
Inventor: JOHAN BJORKSTEN , CHAMPION WILLIAM J
IPC: B41M5/08
CPC classification number: B41M5/08
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公开(公告)号:US2254469A
公开(公告)日:1941-09-02
申请号:US24405538
申请日:1938-12-05
Applicant: DITTO INC
Inventor: JOHAN BJORKSTEN
IPC: B41M5/04
CPC classification number: B41M5/04
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公开(公告)号:US2188590A
公开(公告)日:1940-01-30
申请号:US18870738
申请日:1938-02-04
Applicant: DITTO INC
Inventor: JOHAN BJORKSTEN , CHAMPION WILLIAM J
IPC: B41M5/10
CPC classification number: B41M5/10 , Y10S260/38 , Y10T428/3179 , Y10T428/31808
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公开(公告)号:US2153324A
公开(公告)日:1939-04-04
申请号:US20949838
申请日:1938-05-23
Applicant: DITTO INC
Inventor: JOHAN BJORKSTEN
IPC: B41M5/04
CPC classification number: B41M5/04
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公开(公告)号:US2228108A
公开(公告)日:1941-01-07
申请号:US29189939
申请日:1939-08-25
Applicant: DITTO INC
Inventor: JOHAN BJORKSTEN
CPC classification number: B41M5/04 , B41L7/08 , Y10S116/26
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公开(公告)号:US2281260A
公开(公告)日:1942-04-28
申请号:US30936439
申请日:1939-12-15
Applicant: DITTO INC
Inventor: JOHAN BJORKSTEN , CHAMPION WILLIAM J
IPC: B41C1/10
CPC classification number: B41C1/1091
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公开(公告)号:US2271112A
公开(公告)日:1942-01-27
申请号:US19637438
申请日:1938-03-17
Applicant: DITTO INC
Inventor: JOHAN BJORKSTEN
IPC: B41M5/04
CPC classification number: B41M5/04
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