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发明名称
Compass
摘要
申请公布号
US2274073(A)
申请公布日期
1942.02.24
申请号
US19390289037
申请日期
1939.08.08
申请人
L'ABEE-LUND AKTIESELSKAB
发明人
L'ABEE-LUND JOHAN HENRIK
分类号
G01C17/00
主分类号
G01C17/00
代理机构
代理人
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地址
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