vacuum printing-down frame

  • 61History of poliomyelitis — The history of poliomyelitis (polio) infections extends into prehistory. Although major polio epidemics were unknown before the 20th century,cite journal |author=Trevelyan B, Smallman Raynor M, Cliff A |title=The Spatial Dynamics of Poliomyelitis …

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  • 62Scotland — /skot leuhnd/, n. a division of the United Kingdom in the N part of Great Britain. 5,205,000; 30,412 sq. mi. (78,772 sq. km). Cap.: Edinburgh. * * * I Northernmost country of the United Kingdom. Area: 30,421 sq mi (78,789 sq km). Population… …

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  • 63Scale model — A scale model of the Tower of London. This model can be found inside the tower …

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