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发明名称
Perfectionnements à ou relatifs aux hélicoptères-jouets
摘要
申请公布号
FR1017215(A)
申请公布日期
1952.12.04
申请号
FRD1017215
申请日期
1947.12.31
申请人
发明人
PINEL PHILIPPE
分类号
A63H27/22;A63H29/18
主分类号
A63H27/22
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代理人
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