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  1. 1

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

    יצא לאור 1975
    ספר

    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 .

    יצא לאור 1974
    ספר

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

    Jane's surface skimmer systems

    יצא לאור 1967
    ספר

    Jane's surface skimmer systems

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