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发明名称
ELASTIC MAT UNDERLAYING RAILROAD BALLAST BED
摘要
申请公布号
AU570569(B2)
申请公布日期
1988.03.17
申请号
AU19850044786
申请日期
1985.07.11
申请人
CLOUTH GUMMIWERKE A.G.,
发明人
HERMANN ORTWEIN
分类号
E01B1/00;E01B19/00;(IPC1-7):E01B27/02
主分类号
E01B1/00
代理机构
代理人
主权项
地址
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