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REVOLVING MOLD-BOARDS. 



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R JOHNSOM. 

 Plow Moldboard 



A a CBAPHAIJ. 

 Eevclving MoldboanJ. 



D. D. FOLEY. 

 Plow. 



Palfiiird Upc 1. Ibfs.'t 



PaMnled Jmi, 26. 18e< 



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