TREA

Skyscraper Cleaning Services Inc.

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  • Alberta, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Nozzle guard
    • Patent number D399920
    • Issue date Oct 20, 1998
    • Skyscraper Cleaning Services Inc.
    • Douglas Edward Bate
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Support for garbage chute cleaning apparatus
    • Patent number 5,762,083
    • Issue date Jun 9, 1998
    • Skyscraper Cleaning Services Inc.
    • Douglas Edward Bate
    • B66 - HOISTING LIFTING HAULING