Patent:GB190921023

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Patent:GB 190921023
Title:Improvements in and connected with Calculating Machines
Date:03.03.1910
Place:
Country:Great Britain
Person:Jahnz, Erwin (P)
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 GB190921023 (http://v3.espacenet.com/textdoc?DB=EPODOC&F=0&IDX=GB190921023)


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