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发明名称
PREVENTION OF GROUND FREEZING IN COLD DISTRICT
摘要
申请公布号
JPS60188502(A)
申请公布日期
1985.09.26
申请号
JP19840044688
申请日期
1984.03.07
申请人
FUKUDA DOURO KK
发明人
HARA TOMIO;NAKAMURA KATSUJI
分类号
E01C7/18;E01C11/24;E01H10/00
主分类号
E01C7/18
代理机构
代理人
主权项
地址
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