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经营范围
发明名称
Improvements in and relating to typewriting machines
摘要
申请公布号
GB672641(A)
申请公布日期
1952.05.21
申请号
GB19480006165
申请日期
1945.06.25
申请人
RALPH C. COXHEAD CORPORATION
发明人
分类号
B41J19/32
主分类号
B41J19/32
代理机构
代理人
主权项
地址
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