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发明名称
Circle cutting tool
摘要
申请公布号
US2390938(A)
申请公布日期
1945.12.11
申请号
US19430488081
申请日期
1943.05.22
申请人
HUBBELL WILLIAM F
发明人
HUBBELL WILLIAM F.
分类号
B23K7/10
主分类号
B23K7/10
代理机构
代理人
主权项
地址
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