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发明名称
Automatic dead-reckoner position indicator
摘要
申请公布号
US2924385(A)
申请公布日期
1960.02.09
申请号
US19470727422
申请日期
1947.02.08
申请人
DUNCAN ELECTRIC COMPANY, INC.
发明人
JR. GEORGE N. BURKHART,
分类号
G01C21/12
主分类号
G01C21/12
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