Patent:GB882415

Patent:	GB 882415
Title:	An improved calculator for fractions
Date:	02.07.1959
Place:	Bottle Creek via Tabulam, New South Wales, Australien
Country:	Great Britain
Person:	Goulter, Victor Harold (P)
Company:
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Keywords:
Link to the patent office: (without guarantee)	GB882415

Aus der Patentschrift GB882415

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