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发明名称
Ball, disk, and drum mechanism
摘要
申请公布号
US2388680(A)
申请公布日期
1945.11.13
申请号
US19410407706
申请日期
1941.08.21
申请人
SPERRY GYROSCOPE COMPANY, INC.
发明人
DAWSON EDWARD
分类号
G01P3/06
主分类号
G01P3/06
代理机构
代理人
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地址
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