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托馬斯四則運算器
Sign in to saveAlso known as arithmomètre, arithmometre
thumb|upright=1.3|Arithmomètre built by Louis Payen around 1887
Wikidata facts
- Subclass of
- mechanical calculator
- Manufacturer
- Charles Xavier Thomas
- Official website
- www.arithmometre.org
- Image
- Arithmometre (cropped).jpg
Show 4 more facts
- Commons category
- Arithmometer
- discoverer or inventor
- Charles Xavier Thomas
- commercialization date
- 1851-00-00
- dissolved, abolished or demolished date
- 1914-00-00
Sources (2)
via Wikidata · CC0