FR938128A - Change-vues va-et-vient - Google Patents
Change-vues va-et-vientInfo
- Publication number
- FR938128A FR938128A FR938128DA FR938128A FR 938128 A FR938128 A FR 938128A FR 938128D A FR938128D A FR 938128DA FR 938128 A FR938128 A FR 938128A
- Authority
- FR
- France
- Prior art keywords
- views
- forth change
- forth
- change
- 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
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/02—Viewing or reading apparatus
- G02B27/022—Viewing apparatus
- G02B27/024—Viewing apparatus comprising a light source, e.g. for viewing photographic slides, X-ray transparancies
- G02B27/025—Viewing apparatus comprising a light source, e.g. for viewing photographic slides, X-ray transparancies and magnifying means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR938128T | 1946-12-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR938128A true FR938128A (fr) | 1948-09-06 |
Family
ID=9458254
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR938128D Expired FR938128A (fr) | 1946-12-14 | 1946-12-14 | Change-vues va-et-vient |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR938128A (fr) |
-
1946
- 1946-12-14 FR FR938128D patent/FR938128A/fr not_active Expired
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