METHOD OF MAKING MOULDS AND PATTERNS OF GYPSUM BASED MOULDING SAND MIX FOR PRESSURELESS CASTING OF LOW-MELTING METAL ALLOYS CAPABLE OF REPRODUCING MOULD CAVITY SURFACE CONFIGURATION WITH VERY HIGH ACCURACY,申请号PL19800227609-传众专利搜索

发明名称	METHOD OF MAKING MOULDS AND PATTERNS OF GYPSUM BASED MOULDING SAND MIX FOR PRESSURELESS CASTING OF LOW-MELTING METAL ALLOYS CAPABLE OF REPRODUCING MOULD CAVITY SURFACE CONFIGURATION WITH VERY HIGH ACCURACY
摘要
申请公布号	PL126805(B2)	申请公布日期	1983.08.31
申请号	PL19800227609	申请日期	1980.10.30
申请人		发明人
分类号	A43B13/00;A43B21/00;B22C;(IPC1-7):C04B13/24	主分类号	A43B13/00
代理机构		代理人
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