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经营范围
发明名称
Improvements in or relating to photographic printing and enlarging
摘要
申请公布号
GB395984(A)
申请公布日期
1933.07.27
申请号
GB19330004964
申请日期
1933.02.17
申请人
PAUL SERGE PIRMOV
发明人
分类号
G03B27/32
主分类号
G03B27/32
代理机构
代理人
主权项
地址
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