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Patent:GB210468

Patent:	GB 210468
Title:	Improvements in calculating machines
Date:	01.02.1924
Place:
Country:	Great Britain
Person:	James Mark Mcginnis Barr
Company:
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Link to the patent office: (without guarantee)	GB210468

Aus der Patentschrift GB210468

• DATUM: 01.02.1924
• TITEL: Improvements in calculating machines
• PERSON: JAMES MARK MCGINNIS BARR