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发明名称
Metal punch
摘要
申请公布号
US1817223(A)
申请公布日期
1931.08.04
申请号
US19280249388
申请日期
1928.01.25
申请人
GREENLEE BROS. & CO.
发明人
ABRAMSON JOHN HERBERT;SWANSON EDWIN C.
分类号
B23B45/06
主分类号
B23B45/06
代理机构
代理人
主权项
地址
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