Assertion: galvanometer's use | /r/CapableOf | record electrocardiogram
Facets:
value: in 1902
type: TEMPORAL
value: in a festschrift book
type: LOCATION
Source sentences:
text: Willem Einthoven invented the string galvanometer at Leiden University in the early 20th century, publishing the first registration of its use to record an electrocardiogram in a Festschrift book in 1902.
text: Willem Einthoven invented the string galvanometer at Leiden University in the early 20th century, publishing the first registration of its use to record an electrocardiogram in a Festschrift book in 1902.