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发明名称
An improved method and means for preventing freezing of machine guns mounted in exposed positions on aircraft
摘要
申请公布号
GB495047(A)
申请公布日期
1938.11.07
申请号
GB19370012949
申请日期
1937.05.06
申请人
JAMES MARTIN
发明人
分类号
F41A13/02
主分类号
F41A13/02
代理机构
代理人
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