The ornamental design for an armchair, 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. Armchair
1.1 : Left
1.2 : Front
1.3 : Right
1.4 : Back
1.5 : Top
1.6 : Bottom
1.7 : Front Perspective
1.8 : Back Perspective
The armchair is made of wood. No claim is mad for any specific type of wood.