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经营范围
发明名称
Course softening system
摘要
申请公布号
US2439044(A)
申请公布日期
1948.04.06
申请号
US19430478013
申请日期
1943.03.04
申请人
THE SPERRY CORPORATION
发明人
JR. THOMAS M. FERRILL,
分类号
G01S1/02;G01S19/04
主分类号
G01S1/02
代理机构
代理人
主权项
地址
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