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发明名称
INVESTMENT CASTING MOLD COMPOSITIONS
摘要
申请公布号
CA740353(A)
申请公布日期
1966.08.09
申请号
CAD740353
申请日期
申请人
PHILADELPHIA QUARTZ COMPANY
发明人
M. ROBERT DEROLF;HELMUT H. W. WELDES
分类号
主分类号
代理机构
代理人
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