Brevetti   Gran Bretagna  

Patent:GB130007

Brevetto:	GB 130007
Titolo:	Improvements in and relating to Calculating Machines
Data:	31.07.1919
Luogo:	New York, USA
Nazione:	Gran Bretagna
Persona:
Ditta:	Addometer Corporation (P)
Link interni:
Keywords:
Link al brevetto: (without guarantee)	GB130007

Aus der Patentschrift GB130007

• DATUM: 31.07.1919
• TITEL: Improvements in and relating to Calculating Machines.
• PERSON: ADDOMETER CORP US