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发明名称
Improvements relating to printers rules
摘要
申请公布号
GB398608(A)
申请公布日期
1933.09.21
申请号
GB19320016009
申请日期
1932.06.06
申请人
JOHN HARGRAVES
发明人
分类号
B41B1/14
主分类号
B41B1/14
代理机构
代理人
主权项
地址
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