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发明名称
Multi-scaled slide rules
摘要
申请公布号
US3022001(A)
申请公布日期
1962.02.20
申请号
US19590817606
申请日期
1959.06.02
申请人
DROST LARSEN MOGENS
发明人
LARSEN MOGENS DROST
分类号
G06G1/04
主分类号
G06G1/04
代理机构
代理人
主权项
地址
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