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发明名称
Improvements in screws, bolts and the like and to washers therefor
摘要
申请公布号
GB326031(A)
申请公布日期
1930.03.06
申请号
GB19290009070
申请日期
1929.03.20
申请人
EDWIN SEYMOUR GUEST
发明人
分类号
F16B41/00
主分类号
F16B41/00
代理机构
代理人
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地址
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