Brevetti   Gran Bretagna  

Patent:GB191300311

Brevetto:	GB 191300311
Titolo:	Improvements in or connected with Calculating Machines
Data:	13.11.1913
Luogo:
Nazione:	Gran Bretagna
Persona:	Layton, Edwin James (P)
Ditta:
Link interni:
Keywords:
Link al brevetto: (without guarantee)	GB191300311

Aus der Patentschrift GB191300311

• DATUM: 13.11.1913
• TITEL: Improvements in or connected with Calculating Machines.
• PERSON: LAYTON EDWIN JAMES GB