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经营范围
发明名称
Improvements in uninflammable balloons
摘要
申请公布号
GB373877(A)
申请公布日期
1932.06.02
申请号
GB19310024539
申请日期
1931.09.01
申请人
JEAN LETOURNEUR
发明人
分类号
B64B1/60
主分类号
B64B1/60
代理机构
代理人
主权项
地址
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