| Patent | Priority | Assignee | Title | 
	      
	 | 1049502, |  |  |  | 
    
	 | 1087576, |  |  |  | 
    
	 | 2072687, |  |  |  | 
    
	 | 2153316, |  |  |  | 
    
	 | 2156160, |  |  |  | 
    
	 | 2188396, |  |  |  | 
    
	 | 2306274, |  |  |  | 
    
	 | 2316283, |  |  |  | 
    
	 | 2451558, |  |  |  | 
    
	 | 2489373, |  |  |  | 
    
	 | 2519442, |  |  |  | 
    
	 | 2535373, |  |  |  | 
    
	 | 2558378, |  |  |  | 
    
	 | 2634534, |  |  |  | 
    
	 | 2635976, |  |  |  | 
    
	 | 2680102, |  |  |  | 
    
	 | 2759837, |  |  |  | 
    
	 | 2789903, |  |  |  | 
    
	 | 2808233, |  |  |  | 
    
	 | 2932488, |  |  |  | 
    
	 | 2935763, |  |  |  | 
    
	 | 2976164, |  |  |  | 
    
	 | 3031217, |  |  |  | 
    
	 | 3136530, |  |  |  | 
    
	 | 3287480, |  |  |  | 
    
	 | 3308218, |  |  |  | 
    
	 | 3309444, |  |  |  | 
    
	 | 3313527, |  |  |  | 
    
	 | 3420505, |  |  |  | 
    
	 | 3463456, |  |  |  | 
    
	 | 3471128, |  |  |  | 
    
	 | 3492388, |  |  |  | 
    
	 | 3493527, |  |  |  | 
    
	 | 3498589, |  |  |  | 
    
	 | 3533906, |  |  |  | 
    
	 | 3562373, |  |  |  | 
    
	 | 3596880, |  |  |  | 
    
	 | 3645939, |  |  |  | 
    
	 | 3671615, |  |  |  | 
    
	 | 3707276, |  |  |  | 
    
	 | 3715849, |  |  |  | 
    
	 | 3756567, |  |  |  | 
    
	 | 3769380, |  |  |  | 
    
	 | 3804374, |  |  |  | 
    
	 | 3852387, |  |  |  | 
    
	 | 3858850, |  |  |  | 
    
	 | 3864201, |  |  |  | 
    
	 | 3867493, |  |  |  | 
    
	 | 3878143, |  |  |  | 
    
	 | 3879017, |  |  |  | 
    
	 | 3879505, |  |  |  | 
    
	 | 3888810, |  |  |  | 
    
	 | 3899559, |  |  |  | 
    
	 | 3908902, |  |  |  | 
    
	 | 3918686, |  |  |  | 
    
	 | 3922328, |  |  |  | 
    
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