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发明名称
Dustpan control means for carpet sweepers
摘要
申请公布号
US1933758(A)
申请公布日期
1933.11.07
申请号
US19320585423
申请日期
1932.01.08
申请人
BISSELL CARPET SWEEPER CO.
发明人
PULLEN FRED W.
分类号
A47L13/52
主分类号
A47L13/52
代理机构
代理人
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地址
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