Brevetti   Gran Bretagna  

Patent:GB190921023

Brevetto:	GB 190921023
Titolo:	Improvements in and connected with Calculating Machines
Data:	03.03.1910
Luogo:
Nazione:	Gran Bretagna
Persona:	Jahnz, Erwin (P)
Ditta:
Link interni:
Keywords:
Link al brevetto: (without guarantee)	GB190921023

Aus der Patentschrift GB190921023

• DATUM: 03.03.1910
• TITEL: Improvements in and connected with Calculating Machines.
• PERSON: JAHNZ ERWIN DE