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发明名称
Ballast distributor
摘要
申请公布号
US3167172(A)
申请公布日期
1965.01.26
申请号
US19620207689
申请日期
1962.07.05
申请人
FRANK SPENO RAILROAD BALLAST CLEANING CO. INCORPORATED
发明人
SPENO MARTIN J.;BRUNO ANTHONY T.
分类号
E01B27/02
主分类号
E01B27/02
代理机构
代理人
主权项
地址
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