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发明名称
Railway sleeper
摘要
申请公布号
ZA9304492(B)
申请公布日期
1994.01.18
申请号
ZA19930004492
申请日期
1993.06.23
申请人
POLYRAIL CC.
发明人
GUILLAUME JOHANNES WILD;JOHANNES ALBERTUS GREYLING;MALCOLM A GEORGE
分类号
E01B
主分类号
E01B
代理机构
代理人
主权项
地址
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