发明名称 Ringless casting oval for making investment molds for precision casting
摘要 A device for receiving dental investment solution to create an investment mold, has an oval casing which fictionally engages an oval base. Anti-rotation tabs of the base extend into anti-rotation slots in the casing, with both casing and base made of flexible plastic material.
申请公布号 US5406999(A) 申请公布日期 1995.04.18
申请号 US19940191072 申请日期 1994.02.03
申请人 BELLE DE ST. CLAIRE 发明人 BERGER, ROBERT P.;BENSON, STEVEN
分类号 A61C13/20;A61C13/34;B22C7/02;(IPC1-7):A61C13/20;B22C9/04;B22C21/00 主分类号 A61C13/20
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