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摘要
申请公布号
US2991680(A)
申请公布日期
1961.07.11
申请号
US19590786312
申请日期
1959.01.12
申请人
ZENE L. MCMURTRY;GEORGE H. KEENER;JOSEPH DERN;W. A. CAMBELL
发明人
ELLIOTT EVERETT E.
分类号
G10G7/00
主分类号
G10G7/00
代理机构
代理人
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地址
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