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发明名称
ROADBED MATERIAL
摘要
申请公布号
JPS5494722(A)
申请公布日期
1979.07.26
申请号
JP19780001392
申请日期
1978.01.10
申请人
NIPPON HODO
发明人
SATORI ETSUHISA
分类号
E01C3/00
主分类号
E01C3/00
代理机构
代理人
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