Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
calculator
|
| gptkbp:category |
industrial equipment
|
| gptkbp:countryOfOrigin |
gptkb:Italy
|
| gptkbp:designer |
gptkb:Marcello_Nizzoli
|
| https://www.w3.org/2000/01/rdf-schema#label |
Olivetti Summa 21
|
| gptkbp:introducedIn |
1950s
|
| gptkbp:manufacturer |
gptkb:Olivetti
|
| gptkbp:mechanismOfAction |
mechanical
|
| gptkbp:successor |
gptkb:Olivetti_Summa_22
|
| gptkbp:type |
calculator
|
| gptkbp:usedFor |
arithmetic calculations
|
| gptkbp:bfsParent |
gptkb:Olivetti_calculators
|
| gptkbp:bfsLayer |
7
|