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发明名称
Levelizer
摘要
申请公布号
US2136614(A)
申请公布日期
1938.11.15
申请号
US19380195029
申请日期
1938.03.10
申请人
ST. PAUL HYDRAULIC HOIST COMPANY
发明人
HARLEY BERTRON G.
分类号
E01C23/082
主分类号
E01C23/082
代理机构
代理人
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