Assertion: stethoscope's tube | /r/HasProperty | elastic
Facets:
value: gum
type: OTHER
Source sentences:
text: In 1841 Marc-Hector Landouzy of Paris introduced a stethoscope made partly of gum elastic tubes; this proto-type
text: In 1841 Marc-Hector Landouzy of Paris introduced a stethoscope made partly of gum elastic tubes; this proto-type was improved slightly in 1851 by Arthur Leared of Dublin.