William F. Mangels

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Rides

  • Amusement apparatus. (February 16, 1915) U.S. Patent No. 1,128,890 PDF[1]
  • Carousel. (Jan. 11, 1916) U.S. Patent No. 1,168,089 PDF[2]
  • Carousel. (Feb. 8, 1916) U.S. Patent No. 1,171,220 PDF[3]
  • Figure. (May 27, 1924) U.S. Patent No. 1,495,917 PDF[4]

References

  1. ↑ Mangels, W. F. 1915. "Amusement apparatus." U.S. Patent No. 1,128,890. Accessed through the U.S. Patent and Trademark Office PDF
  2. ↑ Mangels, W. F. 1916. "Carousel." U.S. Patent No. 1,168,089. Accessed through the U.S. Patent and Trademark Office PDF
  3. ↑ Mangels, W. F. 1916. "Carousel." U.S. Patent No. 1,171,220. Accessed through the U.S. Patent and Trademark Office PDF
  4. ↑ Mangels, W. F. 1924. "Figure." U.S. Patent No. 1,495,917. Accessed through the U.S. Patent and Trademark Office PDF
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