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发明名称
Lubricating device for bolts
摘要
申请公布号
US1792694(A)
申请公布日期
1931.02.17
申请号
US19290370177
申请日期
1929.06.12
申请人
KELLOM CHARLES F
发明人
KELLOM CHARLES F.
分类号
E05B17/08;H01Q1/24
主分类号
E05B17/08
代理机构
代理人
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