72338636
Sep 22, 1969
Aug 12, 1975
YORK MANUFACTURING CO.
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GRAIN STORAGE BINS, AND GRAIN DRYING BINS
GRAIN DRYING BINS HAVING AGITATING MEANS, AND APPARATUS FOR USE WITH GRAIN DRYING BINS-NAMELY, GRAIN AUGERS AND GRAIN SPREADERS
SIDE WALL LADDERS FOR GRAIN BINS