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发明名称
Process of making dividing bars
摘要
申请公布号
US2216898(A)
申请公布日期
1940.10.08
申请号
US19380218622
申请日期
1938.07.11
申请人
AWBREY SAMUEL C
发明人
AWBREY SAMUEL C.
分类号
B23K31/02
主分类号
B23K31/02
代理机构
代理人
主权项
地址
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