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发明名称
APPARATUS FOR HARDENING STEEL
摘要
申请公布号
CA304158(A)
申请公布日期
1930.09.23
申请号
CAD304158
申请日期
申请人
SAMUEL I. SALZMAN
发明人
SAMUEL I. SALZMAN
分类号
主分类号
代理机构
代理人
主权项
地址
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