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经营范围
发明名称
Improvements in or relating to carbon roll mechanism for typewriters and like machines
摘要
申请公布号
GB517540(A)
申请公布日期
1940.02.01
申请号
GB19380022407
申请日期
1938.07.28
申请人
JOSEPH PATRICK O'HALLORAN
发明人
分类号
B41J3/24
主分类号
B41J3/24
代理机构
代理人
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地址
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