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Agricultural
Name Number Author Published
cotton gin X000072 Whitney, Eli 1794
cast iron plough X000177 Newbold, Eli 1797
reaper X008277 McCormick, Cyrus H. 1834
peach plant 15 Burbank, Luther 1932
threshing machine 542 Pitts, Hiram A. 1837
pitchfork 7697 Clark, Alinzor 1850
beehive 9300 Langstroth, Lorenzo L. 1852
artificial fertilizer 26196 Mapes, James J. 1859
plow with removable side plates 46454 Deere, John 1865
barbed wire 157124 Glidden, Joseph F. 1874
steam tractor 174706 Shiveley, Christian R. 1876
rotary disk plow 556972 Hardy, Clement 1896
grain harvester 757126 Kellog, Edwin M 1904
DDT - insecticide 2329074 Muller, Paul 1943
drip irrigation system 2752201 Blass, Ludwig 1956
 

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