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Record

  •   GB 0809 Ross - Ross, Col Sir Ronald (1857-1932)
    •   159 - Material on Ross' inventions including ear plugs and a clinical automatic thermometer
      • 01 - Material on the invention of ear plugs by Ross
Ref NoGB 0809 Ross/159/01/47
LevelItem
TitleLetter from Charles Baker, Scientific instrument makers
Date2/2/1916
DescriptionEar plugs of Ross' design will be made up and sent to C Ross. After Ross' letter to the Times they had several inquiries for them but some had been returned as the owners could not sleep in them
AccessStatusOpen
LanguageEnglish
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