اسپیروگراف
Also known as Magic Ruler, Marvellous Wondergraph
Spirograph is a geometric drawing device that produces mathematical roulette curves of the variety technically known as hypotrochoids and epitrochoids. The well-known toy version was developed by British engineer Denys Fisher and first sold in 1965.
Key facts
- Toy.name
- Spirograph
- Toy.image
- 250px 250px
- Toy.caption
- Spirograph set
- Toy.inventor
- Denys Fisher
- Toy.country
- United Kingdom
- Toy.company
- Hasbro
- Toy.from
- 1965
- Toy.to
- present
- Toy.materials
- Plastic
- Toy.website
- https://www.playmonster.com/brands/spirograph/
via Wikipedia infobox
Wikidata facts
- Official website
- www.playmonster.com/brands/spirograph