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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HWT/3/5" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Perkin-Elmer Limited technical diagrams</dc:title>
  <dc:description>Content is mostly from 1950 to 1953, but includes a letter sent in 1965 by Dr M A Ford, Perkin-Elmer's Technical Director, relating to early patents for spectrometers. Also contains duplicated sheets of test procedures which are undated.</dc:description>
  <dc:date>1950 - 1965</dc:date>
</rdf:Description>