How do I find old patents?

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  2. #search
  3. #patents
  4. #looking
  5. #number
  6. #specific
  7. #under
  8. #product
  9. #office
  10. #patent
  11. #uspto
  12. #index
  13. #website
  14. #actual
  15. #click
  16. #trademark
  17. #patft