Patent:GB707740
Brevet: | GB 707740 |
Titre: | Improvements in or relating to circular Slide Rules for making calculations relating to speed, time, and distance |
Date: | 21.04.1954 |
Lieu: | Liverpool |
Pays: | Royaume-Uni |
Personne: | Harold Alexandre Babington |
Entreprise: | |
Liens internes: | Rechenscheibe |
Mots-Clefs: | |
Lien à la bureau des brevets: (sans garantie) | GB707740 |
- DATUM: 21.04.1954
- TITEL: Improvements in or relating to circular slide rules for making calculations relating to speed, time, and distance
- PERSON: HAROLD ALEXANDRE BABINGTON BLA