The ornamental design for a controlroom, as shown and described.
The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.
1. Control room
1.1 : Perspective
1.2 : Top
1.3 : Front
1.4 : Right
1.5 : Left
1.6 : Reference View
The broken lines do not form part of the claimed design; reproduction No. 1.6 is a reference view showing the state in use and does not form part of the claimed design.