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发明名称
MOLD SAND OF EXCELLENT COLLAPSING PROPERTY
摘要
申请公布号
JPS55136538(A)
申请公布日期
1980.10.24
申请号
JP19790044984
申请日期
1979.04.12
申请人
HATANO YOSHIYO
发明人
HATANO YOSHIYO
分类号
B22C1/02
主分类号
B22C1/02
代理机构
代理人
主权项
地址
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