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Class Information
Number: 15/221
Name: Brushing, scrubbing, and general cleaning > Implements > Fabric > Wiper, dauber, or polisher > Collection chamber
Description: Implements having fabric working faces adapted to act as wipers or polishers, and a chamber for collection of material dislodged by the implement, principally blackboard erasers with chambers for collection of chalk-dust.










Patents under this class:

Patent Number Title Of Patent Date Issued
8656548 Oral cleaning section of an oral cleaning device and oral cleaning device Feb. 25, 2014
8522390 Oral cleaning section Sep. 3, 2013
8117706 Manual cleaning instrument Feb. 21, 2012
8056178 Mop with receptacle Nov. 15, 2011
8015650 Fabric sweeper Sep. 13, 2011
8011050 Fabric sweeper Sep. 6, 2011
7921501 Eraser for blackboard Apr. 12, 2011
7721372 Fabric sweeper May. 25, 2010
7213998 Water-supplying cleaning head May. 8, 2007
6964078 Surgical instrument and electrocautery tip-cleaning device Nov. 15, 2005
6895627 Blackboard eraser May. 24, 2005
6132841 Wiping device Oct. 17, 2000
5702195 Washing brush Dec. 30, 1997
4941225 Automatic chalk-powder collecting device for blackboard eraser Jul. 17, 1990
4872237 Chalk dust remover Oct. 10, 1989
4742594 Blackboard eraser May. 10, 1988
4596059 Automatic dust-removing eraser of a rolling-friction type for blackboard Jun. 24, 1986
4462134 Blackboard eraser Jul. 31, 1984
4007509 Blackboard eraser Feb. 15, 1977
3986224 Eraser with dust-collecting means Oct. 19, 1976











 
 
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