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发明名称
Slide rule
摘要
申请公布号
US3405868(A)
申请公布日期
1968.10.15
申请号
US19670629805
申请日期
1967.04.10
申请人
PAUL H.C. YIN
发明人
YIN PAUL H. C.
分类号
G06G1/10
主分类号
G06G1/10
代理机构
代理人
主权项
地址
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