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经营范围
发明名称
INDEPENDENTLY CONTROLLED BACKFALL SYSTEM
摘要
申请公布号
PL109833(B1)
申请公布日期
1980.06.30
申请号
PL19770199593
申请日期
1977.07.11
申请人
发明人
分类号
D03D;D03D49/12;D03D49/22;(IPC1-7):D03D49/22
主分类号
D03D
代理机构
代理人
主权项
地址
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