Assertion: table tennis | /r/HasProperty | trademarked on 20 september
Facets:
value: by hamley brothers
type: OTHER
Source sentences:
text: Ping-Pong was trademarked on 20 September 1900 by Hamley Brothers who became "jointly concerned" with Jaques as the game was renamed first to "Gossima or Ping-Pong", then "Ping-Pong or Gossima" and finally just "Ping-Pong".