Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reexamination Certificate
2011-08-09
2011-08-09
Nguyen, Dung Van (Department: 3723)
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
C015S339000
Reexamination Certificate
active
07992251
ABSTRACT:
A robot includes a second bumper that senses an obstacle having such a height that can be passed over. Thus, the robot can pass over the obstacle without avoiding it.
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International Search Report dated Jun. 30, 2008.
Chung Moon Kee
Jung Young Gyu
Park Jong Il
Rew Ho Seon
KED & Associates LLP
LG Electronics Inc.
Nguyen Dung Van
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