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发明名称
Clamping washer
摘要
申请公布号
US2251733(A)
申请公布日期
1941.08.05
申请号
US19400328790
申请日期
1940.04.09
申请人
FROST LEON M
发明人
FROST LEON M.
分类号
E01D19/12
主分类号
E01D19/12
代理机构
代理人
主权项
地址
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