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发明名称
Screw and lock washer assembly
摘要
申请公布号
US2113425(A)
申请公布日期
1938.04.05
申请号
US19370170634
申请日期
1937.10.23
申请人
ILLINOIS TOOL WORKS
发明人
CROWTHER EDMOND C.
分类号
F16B39/26
主分类号
F16B39/26
代理机构
代理人
主权项
地址
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