FR1017913A - Machine à tirer les plans - Google Patents
Machine à tirer les plansInfo
- Publication number
- FR1017913A FR1017913A FR1017913DA FR1017913A FR 1017913 A FR1017913 A FR 1017913A FR 1017913D A FR1017913D A FR 1017913DA FR 1017913 A FR1017913 A FR 1017913A
- Authority
- FR
- France
- Prior art keywords
- drawing machine
- machine
- Prior art date
- 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
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B27/00—Photographic printing apparatus
- G03B27/02—Exposure apparatus for contact printing
- G03B27/14—Details
- G03B27/18—Maintaining or producing contact pressure between original and light-sensitive material
- G03B27/22—Maintaining or producing contact pressure between original and light-sensitive material by stretching over a curved surface
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1017913T | 1950-05-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1017913A true FR1017913A (fr) | 1952-12-22 |
Family
ID=9574743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1017913D Expired FR1017913A (fr) | 1950-05-13 | 1950-05-13 | Machine à tirer les plans |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1017913A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3707952A (en) * | 1970-08-20 | 1973-01-02 | A Knebel | Compression release mechanism for two stroke engines used to brake a vehicle |
-
1950
- 1950-05-13 FR FR1017913D patent/FR1017913A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3707952A (en) * | 1970-08-20 | 1973-01-02 | A Knebel | Compression release mechanism for two stroke engines used to brake a vehicle |
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