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发明名称
Method and composition for forming precision molds
摘要
申请公布号
US2997400(A)
申请公布日期
1961.08.22
申请号
US19590836340
申请日期
1959.08.27
申请人
GREENEWALD JR HERBERT
发明人
JR. HERBERT GREENEWALD,
分类号
B22C1/18
主分类号
B22C1/18
代理机构
代理人
主权项
地址
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