Patent:DE819737

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Patent:DE 819737
Title:Rechenscheibe mit kreisförmiger Skala
Date:05.11.1951
Place:Berlin
Country:Germany
Person:Robert Martin
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 DE819737 (http://v3.espacenet.com/textdoc?DB=EPODOC&F=0&IDX=DE819737)


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