Brevetti   Gran Bretagna  

Patent:GB717432

Brevetto:	GB 717432
Titolo:	Calculating machine for the four arithmetical operations (addition, subtraction, multiplication and division)
Data:	27.10.1954
Luogo:
Nazione:	Gran Bretagna
Persona:	Altenburger, Ernst (P), Hirt, Otto (P), Westinger, Karl (P)
Ditta:
Link interni:
Keywords:
Link al brevetto: (without guarantee)	GB717432

Aus der Patentschrift GB717432

• DATUM: 27.10.1954
• TITEL: Calculating machine for the four arithmetical operations addition, subtraction, multiplication and division
• PERSON: KARL WESTINGER