Vertical potato elevator
Bartlett, Howard D.
Vertical potato elevator Howard D. Bartlett - Orono University of Maine 1952 - 11p.; 24cm. - (Bulletin; 504) .
635.217 3 B284V
Vertical potato elevator Howard D. Bartlett - Orono University of Maine 1952 - 11p.; 24cm. - (Bulletin; 504) .
635.217 3 B284V