Clinical thermometer patent, 1882. Printed patent drawing of a thermometer invented by US instrument maker Adolph Bayer (). Bayer, working

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Clinical thermometer patent, 1882. Printed patent drawing of a thermometer invented by US instrument maker Adolph Bayer (). Bayer, working in New York, manufactured clinical thermometers. This design is a type of mercury thermometer. This is patent number 263,649 from the US Patent Office, dated 29 August 1882.

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Size: 2588px × 4058px
Photo credit: © US NATIONAL ARCHIVES AND RECORDS ADMINISTRATION/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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