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发明名称
Helical spring forming apparatus
摘要
申请公布号
US2960600(A)
申请公布日期
1960.11.15
申请号
US19590832769
申请日期
1959.08.10
申请人
STAPLES & COMPANY LIMITED
发明人
HEAL ROBERT GARNETT
分类号
B21F3/04;B21F3/06;B21F35/00
主分类号
B21F3/04
代理机构
代理人
主权项
地址
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