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发明名称
摘要
申请公布号
JPS5341892(B2)
申请公布日期
1978.11.07
申请号
JP19750040056
申请日期
1975.04.01
申请人
发明人
分类号
E04G3/28
主分类号
E04G3/28
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代理人
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