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发明名称
摘要
申请公布号
JPS4849816(A)
申请公布日期
1973.07.13
申请号
JP19710083953
申请日期
1971.10.27
申请人
发明人
分类号
B28B7/22;E04G13/06
主分类号
B28B7/22
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