Outstanding aspects in the perfection of grain harvesting /

Rolczynski, John.

Outstanding aspects in the perfection of grain harvesting / by John Rolczynski. - Grand Forks, ND : J. Rolczynski, c2008. - 31 leaves : ill. ; 28 cm.


Grain--Harvesting--Technological innovations--History.
Harvesting machinery--History.

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