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发明名称
Reflector unit and method of making said unit
摘要
申请公布号
US2286085(A)
申请公布日期
1942.06.09
申请号
US19400343995
申请日期
1940.07.05
申请人
SIGNAL SERVICE CORPORATION
发明人
JR. JOHN C. HAGGART,
分类号
E01F9/015
主分类号
E01F9/015
代理机构
代理人
主权项
地址
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