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发明名称
An improved sighting device for rearwardly pointing fixed guns on single seater fighter aeroplanes
摘要
申请公布号
GB541887(A)
申请公布日期
1941.12.16
申请号
GB19400010333
申请日期
1940.06.14
申请人
HUGH PASSMORE BOWRING
发明人
分类号
F41G1/30
主分类号
F41G1/30
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代理人
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地址
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