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发明名称
METHOD OF EXTRUSION LAYING
摘要
申请公布号
JPS5482817(A)
申请公布日期
1979.07.02
申请号
JP19770151061
申请日期
1977.12.15
申请人
JAPAN NATIONAL RAILWAY;SUMITOMO CONST
发明人
KITSUTA TOSHIYUKI;IKEDA YOSHIMI
分类号
E01D19/04;E01D21/00;E01D101/24
主分类号
E01D19/04
代理机构
代理人
主权项
地址
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