Brevetti   Gran Bretagna  

Patent:GB650728

Brevetto:	GB 650728
Titolo:	Improvements in or relating to finger-operable actuator buttons for calculating machines, typewriters and other office machines
Data:	28.02.1951
Luogo:
Nazione:	Gran Bretagna
Persona:
Ditta:	Felt und Tarrant (P)
Link interni:	Comptometer
Keywords:
Link al brevetto: (without guarantee)	GB650728

Aus der Patentschrift GB650728

• DATUM: 28.02.1951
• TITEL: Improvements in or relating to finger-operable actuator buttons for calculating machines, typewriters and other office machines
• PERSON: FELT TARRANT MFG COMPANY