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发明名称
Improvements in or relating to testing devices for investigating the moments of becoming operationally effective and ineffective of magnetically controlled railway trackapparatus
摘要
申请公布号
GB770211(A)
申请公布日期
1957.03.20
申请号
GB19540025560
申请日期
1954.09.02
申请人
SIEMENS AND HALSKE AKTIENGESELLSCHAFT
发明人
SCHMIDT KURT
分类号
B61L3/22
主分类号
B61L3/22
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