Brevetti   Gran Bretagna  

Patent:GB673926

Brevetto:	GB 673926
Titolo:	Improvements in electrically operated calculating machines
Data:	18.06.1952
Luogo:
Nazione:	Gran Bretagna
Persona:	Larsen, Fridthiof Oscar Valdema (P)
Ditta:	Duba Ab
Link interni:
Keywords:
Link al brevetto: (without guarantee)	GB673926

Aus der Patentschrift GB673926

• DATUM: 18.06.1952
• TITEL: Improvements in electrically operated calculating machines
• PERSON: DUBA AB
• Patent Family: ( Patent:GB673926, Patent:US2719671 )