TREA

by means of ring-like securing elements

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Industry

  • CPC
  • G09B1/12
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Parent Industries

GPHYSICS G09Cryptography, education, displays G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE MODELS PLANETARIA GLOBES MAPS DIAGRAMS G09B1/00Manually or mechanically operated educational appliances using elements forming, or bearing, symbols, signs, pictures, or the like which are arranged or adapted to be arranged in one or more particular ways

Current Industry

G09B1/12by means of ring-like securing elements
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Pictorial wardrobe planner
    • Patent number 5,135,401
    • Issue date Aug 4, 1992
    • Sara Feldman-Schorrig
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Teaching book
    • Patent number 5,133,665
    • Issue date Jul 28, 1992
    • Shari G. Engel
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Holder for display cards
    • Patent number 4,666,409
    • Issue date May 19, 1987
    • Gary L. Sandberg
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Flip card apparatus for forming units of speech
    • Patent number 4,515,566
    • Issue date May 7, 1985
    • Robert S. Sprague
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Simplified phonics in the sequential steps to reading
    • Patent number 4,345,902
    • Issue date Aug 24, 1982
    • Jean V. Hengel
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Method of making a photograph album
    • Patent number 4,157,842
    • Issue date Jun 12, 1979
    • Arthur W. Silver
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Teaching aid
    • Patent number 4,137,650
    • Issue date Feb 6, 1979
    • Clarendon Press Pty. Limited
    • Francis G. Hayes
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents