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发明名称
Improvements in or relating to helicopters
摘要
申请公布号
GB795324(A)
申请公布日期
1958.05.21
申请号
GB19560008528
申请日期
1956.03.19
申请人
EMILE AUGUSTE BOURCART;MICHEL BERGER;TECHNIQUE & COMMERCE
发明人
分类号
B64C27/12
主分类号
B64C27/12
代理机构
代理人
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