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发明名称
Events recorder
摘要
申请公布号
US2937064(A)
申请公布日期
1960.05.17
申请号
US19580771689
申请日期
1958.05.29
申请人
WALSH DAVID A
发明人
WALSH DAVID A.
分类号
G07C7/00
主分类号
G07C7/00
代理机构
代理人
主权项
地址
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