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发明名称
Improvements in vehicle couplings
摘要
申请公布号
GB684320(A)
申请公布日期
1952.12.17
申请号
GB19490017497
申请日期
1949.07.01
申请人
NATIONAL COAL BOARD;HAROLD EDWARD DUDLEY
发明人
分类号
B61G1/38
主分类号
B61G1/38
代理机构
代理人
主权项
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