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经营范围
发明名称
Liquid-filled compass with cape of electrically nonconductive material
摘要
申请公布号
US2331747(A)
申请公布日期
1943.10.12
申请号
US19400358716
申请日期
1940.09.27
申请人
GUNNAR TILLANDER
发明人
TILLANDER GUNNAR
分类号
G01C17/00
主分类号
G01C17/00
代理机构
代理人
主权项
地址
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