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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US3439979


Patent:US 3439979
Title:Calculator Means For Fitting Contact Lenses
Date:22.04.1969
Place:
Country:USA
Person:Morgan Loran B
Company:Loran B Morgan
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US3439979 (espacenet),  US3439979 (uspto)


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Aus der Patentschrift US3439979