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发明名称
Improvements in and relating to holders for carbon papers
摘要
申请公布号
GB566439(A)
申请公布日期
1944.12.29
申请号
GB19430012997
申请日期
1943.08.11
申请人
OFREX LIMITED;SARAH ELLEN WRIGLEY
发明人
分类号
B41L1/16
主分类号
B41L1/16
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代理人
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