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经营范围
发明名称
Recording device
摘要
申请公布号
GB516540(A)
申请公布日期
1940.01.04
申请号
GB19380019092
申请日期
1938.06.28
申请人
WILLIAM LESLIE JONES
发明人
分类号
G07C3/12
主分类号
G07C3/12
代理机构
代理人
主权项
地址
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