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发明名称
Sun compass
摘要
申请公布号
US2441636(A)
申请公布日期
1948.05.18
申请号
US19430493674
申请日期
1943.07.06
申请人
KAUFMAN JOSEPH M S;SHELLEY KRASNOW
发明人
KAUFMAN JOSEPH M. S.;KRASNOW SHELLEY
分类号
G01C21/02
主分类号
G01C21/02
代理机构
代理人
主权项
地址
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