The ornamental design for an electricheater, 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. and 3. Electric heater
1.1: Front
1.2 : Back
1.3 : Left
1.4 : Right
1.5: Top
1.6 : Bottom
1.7 : Perspective
3.1: Front
3.2 : Back
3.3 : Left
3.4 : Right
3.5: Top
3.6 : Bottom
3.7 : Perspective
The cyan background coloring in the reproduction views discloses the unclaimed environment only and forms no part of the claimed design.