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REVOLVING MOLD BOARDS. 



W. A. ESTES. 

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No. 212, 20S. 



Patented Feb. II, 1879. 







W, H- HAERINSTON & A. E. MERRILL. 

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lo. 216.271 Patented June 10. IS79. 



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C. A FRATT, 

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E. E. SWARTZ. 

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No. 222.075. 



Patented Nov. 25, 1879. 



r«o. 228.138 



PatoRted May 25. 1880. 



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