Patent:GB327431
Brevet: | GB 327431 |
Titre: | Improvements in or relating to calculating machines |
Date: | 04.04.1930 |
Lieu: | London, Großbritannien |
Pays: | Royaume-Uni |
Personne: | |
Entreprise: | British Tabulating (P) Mach Co Ltd |
Liens internes: | |
Mots-Clefs: | |
Lien à la bureau des brevets: (sans garantie) | ![]() |
- DATUM: 04.04.1930
- TITEL: Improvements in or relating to calculating machines
- PERSON: BRITISH TABULATING MACH CO LTD
- Patent Family: ( Patent:DE654052, Patent:FR668228, Patent:GB303517, Patent:GB327430, Patent:GB327431, Patent:NL37792C, Patent:NL45220C, Patent:US2178950 )