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发明名称
A CONCRETE SLEEPER BLOCK COMPRISING A RAIL SUPPORT INSERT PLATE OF ELASTOMERIC MATERIAL, A METHOD OF MANUFACTURE THE SLEEPER BLOCK AND A RAIL INSERT PLATE FOR CARRYING OUT THE METHOD
摘要
申请公布号
AU7153881(A)
申请公布日期
1981.11.10
申请号
AU19810071538
申请日期
1981.04.13
申请人
A BETONG AB;SABEMA MATERIAL AB
发明人
A. ROSVALL;S. WESTBERG
分类号
E01B9/68
主分类号
E01B9/68
代理机构
代理人
主权项
地址
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