Formula 409 is a brand of home cleaning products well known in the United States of America, but virtually unknown in other English-speaking countries. It includes Formula 409 All-Purpose Cleaner, Formula 409 Glass and Surface Cleaner, Formula 409 Carpet Cleaner, and many others. The flagship product was invented in 1957 by Morris D. which manufactured industrial cleaning supplies. Formula 409s original application was as a commercial solvent and degreaser for industries that struggled with particularly difficult cleaning problems.
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