Torthaí cuardaigh - "Inventions"

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    The Sources of invention de réir Jewkes, John 1902-

    Foilsithe / Cruthaithe 1959
    LEABHAR
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    Discoveries and inventions of the nineteenth century de réir Routledge, Robert

    Foilsithe / Cruthaithe 1989
    LEABHAR
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    Inventions and discoveries 1993 what's happened, what's coming, what's thatn

    Foilsithe / Cruthaithe 1993
    LEABHAR
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    World of invention

    Foilsithe / Cruthaithe 1994
    LEABHAR
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    The rate and direction of inventive activity economic and social factors.

    Foilsithe / Cruthaithe 1962
    LEABHAR
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    Inventions that changed the world Part 1 de réir Ali, Mir Najabat

    Foilsithe / Cruthaithe 1972
    LEABHAR