RBR essential announcements for the interval ranging from December 18, 2020 to December 24, 2020 include notices from Nuro, Ike Robotics, Ouster, Colonnade Acquisition Corporation, Unikie, Promotives, Dive Technologies, DJI, ADLINK Technology, EASA, Velodyne Lidar, Motional, PAL Robotics, and PERSEO.