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经营范围
发明名称
Gyroscopic compass
摘要
申请公布号
US2044899(A)
申请公布日期
1936.06.23
申请号
US19310551138
申请日期
1931.07.16
申请人
SPERRY PRODUCTS INC.
发明人
CARTER LESLIE F.
分类号
G01C19/38
主分类号
G01C19/38
代理机构
代理人
主权项
地址
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