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经营范围
发明名称
Elevating apparatus
摘要
申请公布号
US2181881(A)
申请公布日期
1939.12.05
申请号
US19380234221
申请日期
1938.10.10
申请人
FERRIS LAURENCE W
发明人
FERRIS LAURENCE W.
分类号
B63B27/16
主分类号
B63B27/16
代理机构
代理人
主权项
地址
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