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经营范围
发明名称
Improvements in gyroscopic apparatus
摘要
申请公布号
GB439630(A)
申请公布日期
1935.12.11
申请号
GB19340010870
申请日期
1934.06.11
申请人
JAMES GORDON GRAY
发明人
分类号
B63B39/04
主分类号
B63B39/04
代理机构
代理人
主权项
地址
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