Just remember, those are conventional weapons. The US sold Saddam no chemical or biological weapons. None, nada, zip. And don't let anyone tell you otherwise. They might claim that American companies sold some dual use chemicals but the government only provided licenses, it did not sell him anything. In any event, no one has been able to show that any American dual use chemicals have been weaponized.
Here's that bar chart again, one you can read this time. Be sure to read the comment nest to the red and green dots...};o)
I would highly doubt that. The crux of Hussein's chemical weapon's system was based of his agricultural industry. Iraq played into its large agricultural base considering the desert region, and made a large showing of its exports. U.S. companies did supply chemicals for industrial insecticides, which can be used for a chemical weapon system. Remember that these sales were approved only by U.S. Customs, and their approval only amounted to the fact that all export duties were paid. It was good loophole that Hussein played into. Also remember the huge caches of Industrial Insecticides found during the Iraq war that were falsely identified as WMD's.