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经营范围
发明名称
Travelling cleaning apparatus
摘要
申请公布号
GB811484(A)
申请公布日期
1959.04.08
申请号
GB19570012883
申请日期
1957.04.23
申请人
GRINNELL CORPORATION
发明人
分类号
D03J1/00
主分类号
D03J1/00
代理机构
代理人
主权项
地址
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