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发明名称
Reaction method
摘要
申请公布号
US2320206(A)
申请公布日期
1943.05.25
申请号
US19400314962
申请日期
1940.01.22
申请人
WALTER ENGEL;NIELS ENGEL
发明人
ENGEL WALTER;ENGEL NIELS
分类号
C22B5/00
主分类号
C22B5/00
代理机构
代理人
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地址
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