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image no.: 61617
contact sheet: A1966
collection: Canadian Grain Commission
description: The Pesticide Residue Laboratory At The Canadian Grain Commission Grain Laboratory. The Tractor Gas Chromatograph For Determining Pesticide Residues. (Colour)
subject(s): Agriculture ▪ Equipment ▪ Grain Commission ▪ Laboratories ▪ Marketing ▪ Research
date: 1973