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经营范围
发明名称
Improvements in mechanism for retarding tubs or trucks running down an inclined railtrack
摘要
申请公布号
GB781977(A)
申请公布日期
1957.08.28
申请号
GB19540012341
申请日期
1954.04.28
申请人
DOWTY HYDRAULIC UNITS LIMITED
发明人
FRYE COLIN MICHAEL
分类号
B61K7/22
主分类号
B61K7/22
代理机构
代理人
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