Assertion: vibraphone | /r/HasProperty | introduced by j. c. deagan inc.
Facets:
value: the previous april
type: TEMPORAL
value: in chicago
type: LOCATION
Source sentences:
text: The previous April, in Chicago, the vibraharp had been introduced by J. C. Deagan Inc., a firm then in its 47th year of development and manufacturer of mallet instruments and organ percussions and the originator of the steel marimba many years earlier.