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| The aerosol design of a refillable spray can dubbed the “bug bomb”, was patented in 1943, and is the ancestor of many popular commercial spray products. Pressurized by liquefied gas, which gave it propellant qualities, the small, portable can enabled soldiers to defend against malaria-carrying bugs by spraying inside tents in the Pacific during World War II. In 1948, three companies were granted licenses by the United States government to manufacture aerosols. |
