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发明名称
摘要
申请公布号
JPS5638210(B2)
申请公布日期
1981.09.04
申请号
JP19770150172
申请日期
1977.12.13
申请人
发明人
分类号
E01C13/00;A47G27/02;B32B25/08;E01C13/08
主分类号
E01C13/00
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