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Patent
Patentdatenbank Frankreich 2002
- Patent:FR2803074 08.03.2002 Millet, Michel : Calendrier perpétuel
- Patent:FR2823582 18.10.2002 Tollitte Francois Goerges : Device for reciprocal conversion between two currencies using a given factor, by use of a small card with a Slide Rule type scale and cursor