Tag Archives: US patents

June 12, 1849

On This Date in TWISTED-HISTORY.com! in 1849 Lewis Phectic Haslett of Louisville, KY patented the first gas mask in the United States. His actual patent read, “To all whom it may concern Be it known that I, LEWIS P. HAsLETT, … Continue reading

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March 14, 1899

On This Date in TWISTED-HISTORY.com! in 1899, Count Ferdinand Von Zeppelin was issued a US patent for his invention of the ‘Navigable Balloon’. This rigid airship was known as the Zeppelin. Nothing twisted, just thought it was interesting that the … Continue reading

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