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经营范围
发明名称
Improvements in or relating to pressure bars of document filing appliances
摘要
申请公布号
GB669132(A)
申请公布日期
1952.03.26
申请号
GB19490022306
申请日期
1949.08.27
申请人
REGINALD SPILLER SETTEN
发明人
分类号
B42F13/36
主分类号
B42F13/36
代理机构
代理人
主权项
地址
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