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发明名称
Nut lock
摘要
申请公布号
US1920792(A)
申请公布日期
1933.08.01
申请号
US19290414859
申请日期
1929.12.18
申请人
THE PALNUT COMPANY
发明人
HOTCHKIN JAMES ROWLAND
分类号
F16B37/02
主分类号
F16B37/02
代理机构
代理人
主权项
地址
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