Brevetti   Gran Bretagna  

Patent:GB647708

Brevetto:	GB 647708
Titolo:	A calculating device for calculating the speed of rotation of machine tool spindles
Data:	20.12.1950
Luogo:
Nazione:	Gran Bretagna
Persona:	Jack Frye und James Selby
Ditta:	Victoria Machine Tool Company
Link interni:
Keywords:
Link al brevetto: (without guarantee)	GB647708

Aus der Patentschrift GB647708

• DATUM: 20.12.1950
• TITEL: A calculating device for calculating the speed of rotation of machine tool spindles
• PERSON: VICTORIA MACHINE TOOL COMPANY