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发明名称
Ballast cleaning apparatus
摘要
申请公布号
US3013616(A)
申请公布日期
1961.12.19
申请号
US19590853578
申请日期
1959.11.17
申请人
FRANZ PLASSER;JOSEF THEURER;EGON SCHUBERT
发明人
PLASSER FRANZ;THEURER JOSEF;SCHUBERT EGON
分类号
E01B27/10;E01H8/00
主分类号
E01B27/10
代理机构
代理人
主权项
地址
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