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                        Mercerization process and apparatus
                    
                                            
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                                    Patent number 4,520,520
                                
 
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                                    Issue date Jun 4, 1985
                                
 
                        
                                            
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                                    Lawton L. Johnston
                                 
                        
                                            
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                        Liquid ammonia mercerization
                    
                                            
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                                    Patent number 4,051,699
                                
 
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                                    Issue date Oct 4, 1977
                                
 
                        
                                            
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                                    Burlington Industries, Inc.
                                 
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                                    John B. Carpenter
                                 
                        
                                            
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                        3915632
                    
                                            
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                                    Patent number 3,915,632
                                
 
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                                    Issue date Oct 28, 1975
                                
 
                        
                                                                
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                        3862822
                    
                                            
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                                    Patent number 3,862,822
                                
 
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                                    Issue date Jan 28, 1975
                                
 
                        
                                                                
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                        3793816
                    
                                            
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                                    Patent number 3,793,816
                                
 
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                                    Issue date Feb 26, 1974
                                
 
                        
                                                                
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                        3724243
                    
                                            
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                                    Patent number 3,724,243
                                
 
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                                    Issue date Apr 3, 1973
                                
 
                        
                                                                
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                        3695064
                    
                                            
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                                    Patent number 3,695,064
                                
 
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                                    Issue date Oct 3, 1972
                                
 
                        
                                                                
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                        3664158
                    
                                            
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                                    Patent number 3,664,158
                                
 
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                                    Issue date May 23, 1972
                                
 
                        
                                                                
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                        3643474
                    
                                            
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                                    Patent number 3,643,474
                                
 
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                                    Issue date Feb 22, 1972
                                
 
                        
                                                                
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                        3560140
                    
                                            
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                                    Patent number 3,560,140
                                
 
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                                    Issue date Feb 2, 1971
                                
 
                        
                                                                
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                        3549310
                    
                                            
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                                    Patent number 3,549,310
                                
 
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                                    Issue date Dec 22, 1970
                                
 
                        
                                                                
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                        3528763
                    
                                            
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                                    Patent number 3,528,763
                                
 
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                                    Issue date Sep 15, 1970
                                
 
                        
                                                                
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                        3520068
                    
                                            
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                                    Patent number 3,520,068
                                
 
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                                    Issue date Jul 14, 1970
                                
 
                        
                                                                
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                        3476501
                    
                                            
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                                    Patent number 3,476,501
                                
 
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                                    Issue date Nov 4, 1969
                                
 
                        
                                                                
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