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发明名称
Periscopic peep box
摘要
申请公布号
US2730018(A)
申请公布日期
1956.01.10
申请号
US19530348873
申请日期
1953.04.15
申请人
LOEDERER RICHARD A
发明人
LOEDERER RICHARD A.
分类号
G02B23/08
主分类号
G02B23/08
代理机构
代理人
主权项
地址
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