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发明名称
Perfectionnements apportés aux alliages de métaux précieux
摘要
申请公布号
FR805480(A)
申请公布日期
1936.11.20
申请号
FRD805480
申请日期
1936.04.25
申请人
JOHNSON MATTHEY & COMPANY LIMITED
发明人
分类号
C22C5/02
主分类号
C22C5/02
代理机构
代理人
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地址
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