TREA

Pentti Ahonen

Follow

Person

  • Milton, MA, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Insulation of structures
    • Patent number 4,656,783
    • Issue date Apr 14, 1987
    • Pentti Ahonen
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Window insulation
    • Patent number 4,624,077
    • Issue date Nov 25, 1986
    • Pentti Ahonen
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS