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经营范围
发明名称
Improvements in or relating to film materials
摘要
申请公布号
GB717097(A)
申请公布日期
1954.10.20
申请号
GB19520022766
申请日期
1952.09.10
申请人
ILFORD LIMITED
发明人
CHALLIS KENNETH JOHN;LEE EDWARD WILLIAM
分类号
G03C1/795
主分类号
G03C1/795
代理机构
代理人
主权项
地址
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