TREA

Concrete Shop, Inc.

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Organization

  • Vancouver, WA, US
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Interlocking building blocks
    • Patent number 5,421,135
    • Issue date Jun 6, 1995
    • Concrete Shop, Inc.
    • Hal B. Stevens
    • E04 - BUILDING

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