Patent Publication Number: US-D615178-S

Title: Air heater

Description:
FIG. 1  is a front elevation view of an air heater showing my new design; 
       FIG. 2  is a rear elevation view thereof; 
       FIG. 3  is a left side elevation view thereof; 
       FIG. 4  is a right side elevation view thereof; 
       FIG. 5  is a top plan view thereof; 
       FIG. 6  is a bottom plan view thereof; 
       FIG. 7  is an A—A cross section view of  FIG. 6 ; 
       FIG. 8  is a perspective view thereof; 
       FIG. 9  is an enlarged view of  FIG. 5 ; 
       FIG. 10  is a rear elevation view showing another embodiment of my new design; 
       FIG. 11  is a left side elevation view thereof; 
       FIG. 12  is a right side elevation view thereof; 
       FIG. 13  is a top plan view thereof; 
       FIG. 14  is a bottom plan view thereof 
       FIG. 15  is an A—A cross section view of  FIG. 14 ; 
       FIG. 16  is an perspective view thereof; and, 
       FIG. 17  is an enlarged view of  FIG. 13 .