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Publication of FR937292ApublicationCriticalpatent/FR937292A/fr
B22C9/02—Sand moulds or like moulds for shaped castings
B22C9/04—Use of lost patterns
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FR937292D1946-12-101946-12-10Procédé de fabrication pour moulages de pièces creuses mais avec noyaux perdus incorporés dans les pièces coulées
ExpiredFR937292A
(fr)