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发明名称
Manufacture of holding caps for self-locking nuts
摘要
申请公布号
US2286668(A)
申请公布日期
1942.06.16
申请号
US19410406744
申请日期
1941.08.14
申请人
BROOKE FRANK W
发明人
BROOKE FRANK W.
分类号
B21K1/70
主分类号
B21K1/70
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