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发明名称
Sleeper for rail tracks
摘要
申请公布号
US2257833(A)
申请公布日期
1941.10.07
申请号
US19380204340
申请日期
1938.04.26
申请人
WOLFGANG BASELER;HEINRICH ZANGL;JAKOB DIETRICH
发明人
BASELER WOLFGANG;ZANGL HEINRICH;DIETRICH JAKOB
分类号
E01B3/10
主分类号
E01B3/10
代理机构
代理人
主权项
地址
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