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发明名称
ALLOY STEEL
摘要
申请公布号
CA342450(A)
申请公布日期
1934.06.19
申请号
CAD342450
申请日期
申请人
THE ELECTRO METALLURGICAL COMPANY OF CANADA
发明人
WALTER CRAFTS
分类号
主分类号
代理机构
代理人
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