TREA

Arthur R. Downs

Follow

Person

  • Portsmouth, VA, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Flower garden
    • Patent number 4,654,011
    • Issue date Mar 31, 1987
    • Arthur R. Downs
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Educational and amusement device
    • Patent number 4,595,369
    • Issue date Jun 17, 1986
    • Arthur R. Downs
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS