Landolt, Carl
Contenu
- Nom
- Landolt, Carl
- Couverture temporelle
- Early 20th century
- Couverture spatiale
- Thalwil near Zurich
- Société
- Landolt & Co.
- Biographie
- Manufactured the cogged disc calculating machine 'Conto'. This was a manually set machine with zero function. Models were made to six, eight, ten or eleven places and for English currency to nine or ten places. Apparently production had ceased by 1925 (1).
- Notes biographiques
- 1. Martin 270; example Perret iv, N° 132.
- Identifiant
- ark:/18469/ms02