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  1. 1

    The economics of invention and innovation with a case study of the development of the hovercraft per Johnson, P. S.

    Publicat 1975
    Llibre

    The economics of invention and innovation with a case study of the development of the hovercraft
  2. 2

    Air-cushion vehicles for use in developing countries .

    Publicat 1974
    Llibre

    Air-cushion vehicles for use in developing countries .
  3. 3

    Jane's surface skimmer systems

    Publicat 1967
    Llibre

    Jane's surface skimmer systems

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