Brevetti   Gran Bretagna  

Patent:GB678299

Brevetto:	GB 678299
Titolo:	Improvements in or relating to calculating machines
Data:	03.09.1952
Luogo:
Nazione:	Gran Bretagna
Persona:	Albert John Keen
Ditta:	British Tabulating (P) Mach Co Ltd
Link interni:
Keywords:
Link al brevetto: (without guarantee)	GB678299

Aus der Patentschrift GB678299

• DATUM: 03.09.1952
• TITEL: Improvements in or relating to calculating machines
• PERSON: BRITISH TABULATING MACH CO LTD
• Patent Family: ( Patent:GB678299, Patent:US2620976 )