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Patent:GB188908285


Patent:GB 188908285
Title:Improvements in slide rules or calculating devices
Date:01.01.1889
Place:
Country:Great Britain
Person:Cuttriss
Company:
Internal Links:
Keywords:"Cuttriss' Patent Calculating Disc Nr. 104" (Elliottt Bros. London)
Link to the patent office:
(without guarantee)
 GB188908285


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