发明名称 CLEANING DEVICE
摘要 Disclosed is a cleaning device that comprises a first arm portion with an adjustable length, a first cleaning portion, a second arm portion supporting the first cleaning portion, and a rotating adjustable portion located between the first arm portion and the second arm portion, the first arm portion being rotatable in a predefined range about the second arm portion.
申请公布号 WO2012047646(A3) 申请公布日期 2012.06.14
申请号 WO2011US53445 申请日期 2011.09.27
申请人 3M INNOVATIVE PROPERTIES COMPANY;CHENG, LIANG;VELLA, GIANMAURO;ZENG, FENG 发明人 CHENG, LIANG;VELLA, GIANMAURO;ZENG, FENG
分类号 A47L1/06;A47L1/15 主分类号 A47L1/06
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