DE174121C - - Google Patents
Info
- Publication number
- DE174121C DE174121C DENDAT174121D DE174121DA DE174121C DE 174121 C DE174121 C DE 174121C DE NDAT174121 D DENDAT174121 D DE NDAT174121D DE 174121D A DE174121D A DE 174121DA DE 174121 C DE174121 C DE 174121C
- Authority
- DE
- Germany
- Prior art keywords
- mirrors
- mirror
- movable
- kaleidoscope
- rosettes
- 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.)
- Active
Links
- 239000004744 fabric Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
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
- G02B27/08—Kaleidoscopes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Toys (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE174121C true DE174121C (cs) |
Family
ID=438882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT174121D Active DE174121C (cs) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE174121C (cs) |
-
0
- DE DENDAT174121D patent/DE174121C/de active Active
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