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经营范围
发明名称
Improvements in or relating to locking washers
摘要
申请公布号
GB421560(A)
申请公布日期
1934.12.24
申请号
GB19340034014
申请日期
1933.06.23
申请人
ETTORE CARETTA
发明人
分类号
F16B39/24
主分类号
F16B39/24
代理机构
代理人
主权项
地址
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