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发明名称
Improvements in or relating to the manufacture of pocket and pen knife blades
摘要
申请公布号
GB394463(A)
申请公布日期
1933.06.29
申请号
GB19320011916
申请日期
1932.04.26
申请人
JAMES FREDERICK ROBERTSON
发明人
分类号
B21D53/64
主分类号
B21D53/64
代理机构
代理人
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