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发明名称
Perfectionnements aux appareils pour répandre les gravillons sur les revêtements des routes
摘要
申请公布号
FR761838(A)
申请公布日期
1934.03.28
申请号
FRD761838
申请日期
1932.12.21
申请人
发明人
SCHARS ALPHONSE JOSEPH
分类号
E01C19/20
主分类号
E01C19/20
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