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发明名称
Timing device
摘要
申请公布号
US2797863(A)
申请公布日期
1957.07.02
申请号
US19520316614
申请日期
1952.10.24
申请人
SHEPARD JR HARRY W
发明人
JR. HARRY W. SHEPARD,
分类号
G07C1/30
主分类号
G07C1/30
代理机构
代理人
主权项
地址
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