1868- The refrigerator car is patented by American fish dealer, William Davis.        
        
    
        	https://m.youtube.com/watch?v=TWUf1Fj0tkY        
        
    
        	https://m.youtube.com/watch?v=9dTxO8JC92c        
        
    
        	https://m.youtube.com/watch?v=z6oCQ2QdHA0        
        
    
        	https://youtu.be/xMwQWCK5CRs        
        
    
        	1861- Elisha patents the steam elevator.        
        
    
        	https://youtu.be/gyiZwxjQBHk        
        
    
        	https://youtu.be/5IsW8uLP-R8        
        
    
        	https://youtu.be/THgQF8zHBW8        
        
    
        	https://youtu.be/ztM6tL6LtFs        
        
    

 
        