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发明名称
Railroad spreader
摘要
申请公布号
US1822312(A)
申请公布日期
1931.09.08
申请号
US19280295451
申请日期
1928.07.26
申请人
O. F. JORDAN COMPANY
发明人
PROTZELLER HARRY W.
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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