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发明名称
Spring actuated telescoping periscope
摘要
申请公布号
US2460461(A)
申请公布日期
1949.02.01
申请号
US19460641211
申请日期
1946.01.15
申请人
LARKIN CORDELIA E O
发明人
LARKIN CORDELIA E. O.
分类号
G02B23/08
主分类号
G02B23/08
代理机构
代理人
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地址
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