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经营范围
发明名称
Improvements in or relating to means for preventing pit tubs and the like from running down hill on failure of the haulage rope or a coupling
摘要
申请公布号
GB618713(A)
申请公布日期
1949.02.25
申请号
GB19460033878
申请日期
1946.11.15
申请人
RALPH BARTON;PHILIP ADLER
发明人
分类号
B61K7/04
主分类号
B61K7/04
代理机构
代理人
主权项
地址
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