A fugitive pattern of an article to be investment cast wherein the pattern includes a plurality of locator embossments disposed in an array to provide a datum reference system by which the pattern can be held and positioned by a manipulator, such as for example a gripper device to a computer controlled...http://www.google.fr/patents/US20030075298?utm_source=gb-gplus-shareBrevet US20030075298 - Fugitive patterns for investment casting
Numéro de demande: 10/304,189 Numéro de publication: US 2003/0075298 A1 Date de dépôt: 25 nov. 2002 Brevet délivré: US6789604 ( Date de délivrance 14 sept. 2004)
