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经营范围
发明名称
Protective system
摘要
申请公布号
US2018823(A)
申请公布日期
1935.10.29
申请号
US19320615922
申请日期
1932.06.07
申请人
WELLINGTON HUGO W H
发明人
WELLINGTON HUGO W. H.
分类号
H02H3/00
主分类号
H02H3/00
代理机构
代理人
主权项
地址
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