Patent:GB211137
Brevet: | GB 211137 |
Titre: | Improvements in or relating to calculating machines |
Date: | 06.05.1925 |
Lieu: | |
Pays: | Royaume-Uni |
Personne: | |
Entreprise: | Collett and Co As O |
Liens internes: | |
Mots-Clefs: | |
Lien à la bureau des brevets: (sans garantie) | ![]() |
- DATUM: 06.05.1925
- TITEL: Improvements in or relating to calculating machines
- PERSON: COLLETT CO AS O
- Patent Family: ( Patent:DE414823, Patent:FR576612, Patent:GB211137, Patent:NL16401C, Patent:US1876294 )