CH205204A - Method for producing a blueprint paper and blueprint paper produced therefrom. - Google Patents
Method for producing a blueprint paper and blueprint paper produced therefrom.Info
- Publication number
- CH205204A CH205204A CH205204DA CH205204A CH 205204 A CH205204 A CH 205204A CH 205204D A CH205204D A CH 205204DA CH 205204 A CH205204 A CH 205204A
- Authority
- CH
- Switzerland
- Prior art keywords
- blueprint paper
- producing
- produced therefrom
- blueprint
- paper
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/64—Compositions containing iron compounds as photosensitive substances
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Coloring (AREA)
- Color Printing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB205204X | 1937-02-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH205204A true CH205204A (en) | 1939-06-15 |
Family
ID=10147232
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH205204D CH205204A (en) | 1937-02-27 | 1938-02-21 | Method for producing a blueprint paper and blueprint paper produced therefrom. |
Country Status (3)
Country | Link |
---|---|
US (2) | US2158422A (en) |
CH (1) | CH205204A (en) |
GB (1) | GB494572A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2978345A (en) * | 1958-05-15 | 1961-04-04 | Du Pont | Stabilization of zinc ferricyanide |
US3161510A (en) * | 1961-10-26 | 1964-12-15 | Western Electric Co | Visual aid technique of presenting drawing changes |
-
0
- US US21240D patent/USRE21240E/en not_active Expired
-
1937
- 1937-02-27 GB GB5937/37A patent/GB494572A/en not_active Expired
-
1938
- 1938-02-21 CH CH205204D patent/CH205204A/en unknown
- 1938-02-26 US US192891A patent/US2158422A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US2158422A (en) | 1939-05-16 |
GB494572A (en) | 1938-10-27 |
USRE21240E (en) | 1939-10-17 |
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