1450 



ELEVATING AND DEPRESSING SPRINGS. 



W. P, BROWN. 

 Improvement in Cultivators. 



No. 128.701. P.l.nt.d Jul, 9, 1872. 



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A. T. SHERWOOD. 

 Improvement in Cuitivators- 





IllVflltOl* 



G. A. PURSLV. 

 Grain Drillt. 



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PtitAOd Iun< 3. 1873. 



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- bivomri 



). M. GUSTIN. 

 Cultivators. 



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Htl-IOTYPE PRINTING CO BOSTOIf 



