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发明名称
摘要
申请公布号
FR1604910(A)
申请公布日期
1971.05.15
申请号
FRD1604910
申请日期
1965.09.07
申请人
发明人
分类号
F42B1/024;F42B1/028
主分类号
F42B1/024
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