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发明名称
Brush head swinging device and control
摘要
申请公布号
US1885540(A)
申请公布日期
1932.11.01
申请号
US19310557867
申请日期
1931.08.18
申请人
OBERTI JAMES M
发明人
OBERTI JAMES M.
分类号
B25G3/38
主分类号
B25G3/38
代理机构
代理人
主权项
地址
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