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经营范围
发明名称
Annealing process
摘要
申请公布号
US1869254(A)
申请公布日期
1932.07.26
申请号
US19280312211
申请日期
1928.10.12
申请人
ELECTRO METALLURGICAL COMPANY
发明人
HEATH CHESTER S.
分类号
主分类号
代理机构
代理人
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