ELEVATING AND DEPRESSING SPRINGS. 



1461 



No. 235.175 



F. P. SMITH. 

 Sniky Plows. 



Patented Dec. 7. i880. 

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In v/'iitof: 



F. F. SMITH. 

 Salky Plows. 



ISbtitt-Sbgatl 



No. 235,175. 



ful2. 



Pilented D«c. 7, (880. 





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B ;ii«aUi-'8Tif*tS. 



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(ifod.ii g J 30WMAN. iBti«.t.-8bmi. 



Gang Plow, Plautbr and Oaltivator. 

 No. 236.536. Patented Jan. II, 1881. 



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