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经营范围
发明名称
Time and distance computer
摘要
申请公布号
US2523589(A)
申请公布日期
1950.09.26
申请号
US19500162226
申请日期
1950.05.16
申请人
PETERSON JR HAROLD W
发明人
JR. HAROLD W. PETERSON,
分类号
G06G3/00
主分类号
G06G3/00
代理机构
代理人
主权项
地址
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