The ornamental design for a loudspeaker, as shown and described.
FIG. 1 is a front view of a loudspeaker showing my new design;
FIG. 2 is a perspective view thereof;
FIG. 3 is a bottom view thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a right side view thereof; and,
FIG. 6 is a left side view thereof.
The broken line showing of the remainder of the loudspeaker in FIGS. 2 thorough 6 is for illustrative purposes only and forms no part of the claimed design.
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE ADDRESS PREVIOUSLY RECORDED ON REEL 034471 FRAME 0075 ASSIGNOR S HEREBY CONFIRMS THE CORRECT ADDRESS IS KEILALAHDENTIE 2-4