Brevetti   Gran Bretagna  

Patent:GB191021704

Brevetto:	GB 191021704
Titolo:	Improvements in Calculating Machines
Data:	19.09.1911
Luogo:
Nazione:	Gran Bretagna
Persona:	Austin, Sydney Bertrand (P)
Ditta:
Link interni:
Keywords:
Link al brevetto: (without guarantee)	GB191021704

Aus der Patentschrift GB191021704

• DATUM: 19.09.1911
• TITEL: Improvements in Calculating Machines.
• PERSON: AUSTIN SYDNEY BERTRAND US