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发明名称
Improvements relating to time stamps or recorders
摘要
申请公布号
GB365724(A)
申请公布日期
1932.01.28
申请号
GB19300036234
申请日期
1930.12.02
申请人
BLICK TIME RECORDERS LIMITED;JOHN VICTOR WALKER;JOHN WALKER
发明人
分类号
G07C1/06
主分类号
G07C1/06
代理机构
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