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发明名称
Method of producing wing nuts
摘要
An improved method to produce wing nut. The wing nuts being produced through a sequence of operations comprising cutting, trimming, upsetting, bending, extrusion, drilling, wing forming and tapping.
申请公布号
US5060331(A)
申请公布日期
1991.10.29
申请号
US19900631412
申请日期
1990.12.21
申请人
LUCHU SHINYEE WORKS CO., LTD.
发明人
SHIE, TSAI-FU
分类号
B21K1/70
主分类号
B21K1/70
代理机构
代理人
主权项
地址
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