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经营范围
发明名称
Improvements in photographic films and processes for producing stencils therewith
摘要
申请公布号
GB665649(A)
申请公布日期
1952.01.30
申请号
GB19490008972
申请日期
1949.04.01
申请人
THE AUTOTYPE COMPANY LIMITED
发明人
SHARP FRANK WILLIAM
分类号
G03F7/12
主分类号
G03F7/12
代理机构
代理人
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