GB648686A - - Google Patents
Info
- Publication number
- GB648686A GB648686A GB2005647A GB2005647A GB648686A GB 648686 A GB648686 A GB 648686A GB 2005647 A GB2005647 A GB 2005647A GB 2005647 A GB2005647 A GB 2005647A GB 648686 A GB648686 A GB 648686A
- Authority
- GB
- United Kingdom
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F5/00—Screening processes; Screens therefor
- G03F5/02—Screening processes; Screens therefor by projection methods
- G03F5/12—Screening processes; Screens therefor by projection methods using other screens, e.g. granulated screen
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Printing Methods (AREA)
- Overhead Projectors And Projection Screens (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US41553041 US2373489A (en) | 1941-10-18 | 1941-10-18 | Halftone photoengraving process |
| US3679448 US2468680A (en) | 1941-10-18 | 1948-07-02 | Halftone screen for use in the |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB648686A true GB648686A (US06534493-20030318-C00166.png) | 1951-01-10 |
Family
ID=26713500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2005647A Expired GB648686A (US06534493-20030318-C00166.png) | 1941-10-18 | 1947-07-25 |
Country Status (2)
| Country | Link |
|---|---|
| US (2) | US2373489A (US06534493-20030318-C00166.png) |
| GB (1) | GB648686A (US06534493-20030318-C00166.png) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2983604A (en) * | 1955-11-03 | 1961-05-09 | Gen Aniline & Film Corp | Quenching solution for fluorescent photographic paper employed in the manufacture ofhalftone negatives |
| US3352728A (en) * | 1963-12-13 | 1967-11-14 | Keuffel & Esser Co | Material and method for making stencil masters |
| US3647471A (en) * | 1969-11-19 | 1972-03-07 | Lockheed Aircraft Corp | Photographic reproduction of halftone screens |
| CA1005676A (en) * | 1972-08-31 | 1977-02-22 | Eastman Kodak Company | Information receiving element |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1162162A (en) * | 1913-05-09 | 1915-11-30 | Mabel K Hatt | Process of producing printing-plates. |
| US1988891A (en) * | 1931-07-23 | 1935-01-22 | Gaspar Bela | Method of producing photographs in two or more colors |
| US2304988A (en) * | 1940-04-19 | 1942-12-15 | Eastman Kodak Co | Photomechanical reproduction |
-
1941
- 1941-10-18 US US41553041 patent/US2373489A/en not_active Expired - Lifetime
-
1947
- 1947-07-25 GB GB2005647A patent/GB648686A/en not_active Expired
-
1948
- 1948-07-02 US US3679448 patent/US2468680A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2468680A (en) | 1949-04-26 |
| US2373489A (en) | 1945-04-10 |
