Assertion: porcelain's recipe | /r/HasProperty | trade
Facets:
value: for his company
type: TRANSITIVE-OBJECT
value: by böttger
type: OTHER
Source sentences:
text: Certainly, the Meissen porcelain factory, established 1710, was the first to produce porcelain in Europe in large quantities and since the recipe was kept a trade secret by Böttger for his company, experiments continued elsewhere throughout Europe.