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发明名称
Sonic speed recorder
摘要
申请公布号
US2713679(A)
申请公布日期
1955.07.19
申请号
US19540423398
申请日期
1954.04.15
申请人
GEORGE EWERTZ CLEMENT
发明人
EWERTZ CLEMENT GEORGE
分类号
G01P1/10;G01P3/64;G01S1/72
主分类号
G01P1/10
代理机构
代理人
主权项
地址
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