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发明名称
Improvements relating to lifting-dogs
摘要
申请公布号
GB427820(A)
申请公布日期
1935.05.01
申请号
GB19330030603
申请日期
1933.11.03
申请人
WILLIAM HERBERT SMITH
发明人
分类号
B66C1/44
主分类号
B66C1/44
代理机构
代理人
主权项
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