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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/159/01/37
LevelItem
TitleLetter from Charles Baker, Scientific instrument makers
Date22/2/1912
DescriptionThey have had no more of the ear plugs made up but still have a copy of the sample covered with velvet. They will make up samples for sending to the medical press but in view of the lack of interest shown previously, doubt if they will be a commercial success
AccessStatusOpen
LanguageEnglish
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