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发明名称
Set screw
摘要
申请公布号
US1849240(A)
申请公布日期
1932.03.15
申请号
US19310524829
申请日期
1931.03.24
申请人
NATIONAL LOCK WASHER COMPANY
发明人
MCCRUDDEN FREDERICK R.
分类号
F16B39/286
主分类号
F16B39/286
代理机构
代理人
主权项
地址
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