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41.Process of producing a colored photographic image by means of exhaustion of developer 失效
Title translation: 通过显影剂耗尽生产彩色摄影图像的方法公开(公告)号:US2661293A
公开(公告)日:1953-12-01
申请号:US70203946
申请日:1946-10-08
Applicant: POLAROID CORP
Inventor: LAND EDWIN H
IPC: G03C8/08
CPC classification number: G03C8/08 , Y10S430/142
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42.Photographic product and process for forming a white image viewable against a dark background 失效
Title translation: 用于形成白色图像的摄影产品和过程,可在黑暗背景下观看公开(公告)号:US2647055A
公开(公告)日:1953-07-28
申请号:US70800746
申请日:1946-11-06
Applicant: POLAROID CORP
Inventor: LAND EDWIN H
IPC: G03C8/04
CPC classification number: G03C8/04
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公开(公告)号:US2639233A
公开(公告)日:1953-05-19
申请号:US7396149
申请日:1949-02-01
Applicant: POLAROID CORP
Inventor: LAND EDWIN H
IPC: G03C8/34
CPC classification number: G03C8/34
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44.Self-framing photographic film unit containing a liquid, and process for producing framed positive images 失效
Title translation: 含有液体的自动成像摄影胶片单元,以及用于生成框架正像的处理公开(公告)号:US2612450A
公开(公告)日:1952-09-30
申请号:US64180946
申请日:1946-01-17
Applicant: POLAROID CORP
Inventor: LAND EDWIN H
IPC: G03C8/42
CPC classification number: G03C8/42
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公开(公告)号:US2603565A
公开(公告)日:1952-07-15
申请号:US72898347
申请日:1947-02-17
Applicant: POLAROID CORP
Inventor: LAND EDWIN H
IPC: G03C8/34
CPC classification number: G03C8/34
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公开(公告)号:US2590185A
公开(公告)日:1952-03-25
申请号:US63219345
申请日:1945-12-01
Applicant: POLAROID CORP
Inventor: LAND EDWIN H
IPC: G03D9/02
CPC classification number: G03D9/02 , Y10S118/15 , Y10S411/959 , Y10T74/1955
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47.Photographic silver transfer product and process, including a lead salt 失效
Title translation: 摄影银转移产品和工艺,包括铅盐公开(公告)号:US2584029A
公开(公告)日:1952-01-29
申请号:US66200046
申请日:1946-04-13
Applicant: POLAROID CORP
Inventor: LAND EDWIN H
IPC: G03C8/06
CPC classification number: G03C8/06
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48.Photographic positive-producing light sensitive element and process 失效
Title translation: 摄影正产光敏元件及工艺公开(公告)号:US2565376A
公开(公告)日:1951-08-21
申请号:US72957947
申请日:1947-02-19
Applicant: POLAROID CORP
Inventor: LAND EDWIN H
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公开(公告)号:US2559643A
公开(公告)日:1951-07-10
申请号:US952748
申请日:1948-02-19
Applicant: POLAROID CORP
Inventor: LAND EDWIN H
IPC: G03C8/08
CPC classification number: G03C8/08 , Y10S430/142
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公开(公告)号:US2520641A
公开(公告)日:1950-08-29
申请号:US79060347
申请日:1947-12-09
Applicant: POLAROID CORP
Inventor: LAND EDWIN H
IPC: G03B17/52
CPC classification number: G03B17/52
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