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发明名称
Course recorder
摘要
申请公布号
US2727801(A)
申请公布日期
1955.12.20
申请号
US19530346880
申请日期
1953.04.06
申请人
EDWARD SKILLMAN
发明人
SKILLMAN EDWARD
分类号
G01C21/22
主分类号
G01C21/22
代理机构
代理人
主权项
地址
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