William F. Mangels

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This page is a snippet that will be expanded in the future.

Rides

  • Figure. (May 27, 1924) U.S. Patent No. 1,495,917 PDF[1]
  • Pleasure railway. (February 24, 1925) U.S. Patent No. 1,527,893 PDF[2]

References

  1. ↑ Mangels, W. F. 1924. "Figure." U.S. Patent No. 1,495,917. Accessed through the U.S. Patent and Trademark Office PDF
  2. ↑ Mangels, W. F. 1925. "Pleasure railway." U.S. Patent No. 1,527,893. Accessed through the U.S. Patent and Trademark Office PDF