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发明名称
摘要
申请公布号
JPS5212336(Y2)
申请公布日期
1977.03.18
申请号
JP19740014381U
申请日期
1974.02.05
申请人
发明人
分类号
E04G3/00;(IPC1-7):E04G3/04
主分类号
E04G3/00
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代理人
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地址
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