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发明名称
摘要
申请公布号
JPS50100112(A)
申请公布日期
1975.08.08
申请号
JP19740005071
申请日期
1974.01.08
申请人
发明人
分类号
E04G21/02;B28B13/02
主分类号
E04G21/02
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代理人
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