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René-Théophile-Hyacinthe (1781-1826) Laennec, Monaural stethoscope, designed by René-Théophile-Hyacinthe Laënnec in 1819, 1819
Stethoscope, HC.LA.1.5 - 2René-Théophile-Hyacinthe (1781-1826) Laennec (originator),
Stethoscope, Wooden, HC.LA.1.6 - 3René-Théophile-Hyacinthe (1781-1826) Laennec (originator), 1819-01-01
Stethoscope, HC.LA.1.7 - 4René-Théophile-Hyacinthe (1781-1826) Laennec (originator),
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Fetal stethoscope, @EUP