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  The real visionary behind Cat's Eyes
• Cat's Eyes
  Specification, Letters,
  Patent Office Application and prototypes
• Freddie Lee
  Biography, images and information
  about Frederick Walter Madeley Lee

1. Provisional specification 26 January 1932
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2. Letter from Marks & Clerk, Patent & Trade Mark Agents, 20 January 1932
   Letter
3. The Patent Office receipt no. 1728, 20 January 1932
   Receipt
4. Entry in the Official Journal (Patents) 20 January 1932 no. 1728.
   Journal Entry
5. Entry showing that the patent was abandoned.
   Journal Entry
6. Photographs of prototype cats' eyes.
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Freddie Lee