GB175492A - Improvements in kaleidoscopes - Google Patents
Improvements in kaleidoscopesInfo
- Publication number
- GB175492A GB175492A GB3602220A GB3602220A GB175492A GB 175492 A GB175492 A GB 175492A GB 3602220 A GB3602220 A GB 3602220A GB 3602220 A GB3602220 A GB 3602220A GB 175492 A GB175492 A GB 175492A
- Authority
- GB
- United Kingdom
- Prior art keywords
- kaleidoscopes
- 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
- G02B27/08—Kaleidoscopes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3602220A GB175492A (en) | 1920-12-23 | 1920-12-23 | Improvements in kaleidoscopes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3602220A GB175492A (en) | 1920-12-23 | 1920-12-23 | Improvements in kaleidoscopes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB175492A true GB175492A (en) | 1922-02-23 |
Family
ID=10384094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3602220A Expired GB175492A (en) | 1920-12-23 | 1920-12-23 | Improvements in kaleidoscopes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB175492A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986003683A1 (en) * | 1984-12-21 | 1986-07-03 | Concorde St. George Productions Pty. Ltd. | Optical entertainment or amusement structure and device |
US4725135A (en) * | 1984-12-21 | 1988-02-16 | Concorde St. George Productions Pty. Ltd. | Optical entertainment of amusement structure and device |
-
1920
- 1920-12-23 GB GB3602220A patent/GB175492A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986003683A1 (en) * | 1984-12-21 | 1986-07-03 | Concorde St. George Productions Pty. Ltd. | Optical entertainment or amusement structure and device |
US4725135A (en) * | 1984-12-21 | 1988-02-16 | Concorde St. George Productions Pty. Ltd. | Optical entertainment of amusement structure and device |
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