It was used to put out the oil well fires in the middle east when the war started. I met the two old codgers that came up with the idea.
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This doesn't happen very often. An odd note *tink* as the change fell into the hopper at the Kroger just now.
Another post that confirms that many things aren't really new they are just reinvented a bit differently. FYI Richard Chambers TZ750 had simliar winglets back around 1980?