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发明名称
Apparatus for measuring time intervals
摘要
申请公布号
US2607414(A)
申请公布日期
1952.08.19
申请号
US19470740691
申请日期
1947.04.10
申请人
RITTER COMPANY, INC.
发明人
MORRISON MONTFORD
分类号
G04C3/06
主分类号
G04C3/06
代理机构
代理人
主权项
地址
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