COLTERS. 



161 



H A. CURRIER 

 Jointer for Plow- 



No. 234.251 



Patented Nov. 9. 1880. 







C E. HARTMiK 

 Colter. 



No. 238,115. 



Patented Feb. 22, 1881. 



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0. B. ST. JOHN. 

 Plow. 



B. C. BfiADLEY. 

 Caster Colter and Jointer. 



No. 241,086. 



Patented May 3. 1881. 



No. 243.102. 



Patented June 21. 1881. 





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