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发明名称
Improvements in railway rail-joints
摘要
申请公布号
GB569230(A)
申请公布日期
1945.05.14
申请号
GB19430018317
申请日期
1943.11.04
申请人
JACOB OVSIOWITZ;SAMUEL OVSIOWITZ
发明人
分类号
E01B11/40
主分类号
E01B11/40
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代理人
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