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发明名称
Improvements in or relating to a machine for excavating and cleaning ballast of railway tracks
摘要
申请公布号
GB772388(A)
申请公布日期
1957.04.10
申请号
GB19550019520
申请日期
1955.07.06
申请人
MASCHINENFABRIK MEER AKTIENGESELLSCHAFT
发明人
GROTH WILLI
分类号
E01B27/10
主分类号
E01B27/10
代理机构
代理人
主权项
地址
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