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经营范围
发明名称
Combined inclinometer and compass
摘要
申请公布号
US1860259(A)
申请公布日期
1932.05.24
申请号
US19290396285
申请日期
1929.09.30
申请人
MARSHALL JAMES E
发明人
MARSHALL JAMES E.
分类号
G01C9/00;G01C9/14
主分类号
G01C9/00
代理机构
代理人
主权项
地址
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