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公开(公告)号:US2440364A
公开(公告)日:1948-04-27
申请号:US51562043
申请日:1943-12-24
Applicant: DITTO INC
Inventor: CHAMPION WILLIAM J
IPC: C09D11/12
CPC classification number: C09D11/12
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公开(公告)号:US2294384A
公开(公告)日:1942-09-01
申请号:US40540641
申请日:1941-08-04
Applicant: DITTO INC
Inventor: CHAMPION WILLIAM J
IPC: B41M5/08
CPC classification number: B41M5/08 , Y10T428/24777
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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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14.Hectograph blanket comprising a cellulose derivative gel and method of preparing andusing same 失效
Title translation: 包含纤维素衍生物凝胶的Hectograph毯及其制备和使用方法公开(公告)号:US2271758A
公开(公告)日:1942-02-03
申请号:US33622640
申请日:1940-05-20
Applicant: DITTO INC
Inventor: CHAMPION WILLIAM J
IPC: B41M5/08
CPC classification number: B41M5/08
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15.Hectograph blanket having a copy mass containing a small percentage of glycol type or sorbitol type solvent 失效
Title translation: 具有含有少量乙二醇型或山梨糖醇型溶剂的复制质量的Hectograph毯公开(公告)号:US2255912A
公开(公告)日:1941-09-16
申请号:US34244740
申请日:1940-06-26
Applicant: DITTO INC
Inventor: CHAMPION WILLIAM J
IPC: B41M5/08
CPC classification number: B41M5/08 , Y10S428/908 , Y10S428/909 , Y10T428/31775
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公开(公告)号:US2465160A
公开(公告)日:1949-03-22
申请号:US52468644
申请日:1944-03-02
Applicant: DITTO INC
Inventor: LEVENHAGEN ARTHUR J , CHAMPION WILLIAM J
IPC: B41L7/08
CPC classification number: B41L7/08
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17.Hectograph blanket having a copy mass comprising a silicate 失效
Title translation: 具有包含硅酸盐的复制质量的Hectograph毯公开(公告)号:US2387643A
公开(公告)日:1945-10-23
申请号:US40540741
申请日:1941-08-04
Applicant: DITTO INC
Inventor: CHAMPION WILLIAM J
IPC: B41M5/08
CPC classification number: B41M5/08
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18.Duplicating process for reproducing color designs of high color intensity 失效
Title translation: 复制高色彩设计的复制过程公开(公告)号:US2337737A
公开(公告)日:1943-12-28
申请号:US44437442
申请日:1942-05-25
Applicant: DITTO INC
Inventor: CHAMPION WILLIAM J
IPC: B41M5/04
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19.Method and means of increasing the fade resistance of duplication copies 失效
Title translation: 增加复制拷贝的抗褪色性的方法和手段公开(公告)号:US2332696A
公开(公告)日:1943-10-26
申请号:US45320442
申请日:1942-08-01
Applicant: DITTO INC
Inventor: CHAMPION WILLIAM J
IPC: B41M5/04
CPC classification number: B41M5/04
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公开(公告)号:US2259174A
公开(公告)日:1941-10-14
申请号:US26651939
申请日:1939-04-07
Applicant: DITTO INC
Inventor: NEAL MORRIS P , CHAMPION WILLIAM J
IPC: B41L19/00
CPC classification number: B41L19/00
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