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经营范围
发明名称
Perfectionnements aux aéroplanes ou aux planeurs jouets
摘要
申请公布号
FR828205(A)
申请公布日期
1938.05.12
申请号
FRD828205
申请日期
1937.10.22
申请人
发明人
EDWARD BACK WILLIAM,
分类号
A63H27/00;A63H27/20;B64C3/38
主分类号
A63H27/00
代理机构
代理人
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