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发明名称
Improvements in the manufacture of zinc sheets for use in the photo-engraving industry
摘要
申请公布号
GB536878(A)
申请公布日期
1941.05.30
申请号
GB19390029992
申请日期
1939.11.13
申请人
THOMAS JEROME MASSE
发明人
分类号
B41N1/06;C22F1/16
主分类号
B41N1/06
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代理人
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