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经营范围
发明名称
Improvements in or relating to photographic developers
摘要
申请公布号
GB960872(A)
申请公布日期
1964.06.17
申请号
GB19600021442
申请日期
1960.06.17
申请人
WILLIAM WALKER
发明人
分类号
G03C5/26;G03C5/38
主分类号
G03C5/26
代理机构
代理人
主权项
地址
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