| Patent | Priority | Assignee | Title | 
	      
	 | 1501331, |  |  |  | 
    
	 | 1518942, |  |  |  | 
    
	 | 207482, |  |  |  | 
    
	 | 2471328, |  |  |  | 
    
	 | 2619122, |  |  |  | 
    
	 | 2619986, |  |  |  | 
    
	 | 2685301, |  |  |  | 
    
	 | 2827073, |  |  |  | 
    
	 | 2842400, |  |  |  | 
    
	 | 2877791, |  |  |  | 
    
	 | 2923314, |  |  |  | 
    
	 | 2986155, |  |  |  | 
    
	 | 2999191, |  |  |  | 
    
	 | 3019453, |  |  |  | 
    
	 | 3034151, |  |  |  | 
    
	 | 3056143, |  |  |  | 
    
	 | 3058485, |  |  |  | 
    
	 | 3098635, |  |  |  | 
    
	 | 3242940, |  |  |  | 
    
	 | 3254664, |  |  |  | 
    
	 | 3285261, |  |  |  | 
    
	 | 3318565, |  |  |  | 
    
	 | 3369205, |  |  |  | 
    
	 | 3373449, |  |  |  | 
    
	 | 3386462, |  |  |  | 
    
	 | 3400731, |  |  |  | 
    
	 | 3495803, |  |  |  | 
    
	 | 3495804, |  |  |  | 
    
	 | 3559675, |  |  |  | 
    
	 | 3586017, |  |  |  | 
    
	 | 3606241, |  |  |  | 
    
	 | 3693649, |  |  |  | 
    
	 | 3740019, |  |  |  | 
    
	 | 3763881, |  |  |  | 
    
	 | 3778023, |  |  |  | 
    
	 | 3791619, |  |  |  | 
    
	 | 3802462, |  |  |  | 
    
	 | 3812398, |  |  |  | 
    
	 | 3821967, |  |  |  | 
    
	 | 3842857, |  |  |  | 
    
	 | 3895645, |  |  |  | 
    
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