Assertion: gypsum's patent | /r/AtLocation | sale
Facets:
value: under
type: LOCATION
Source sentences:
text: "so a combination of the two systems would give a patent to work under in the manufacture and sale of Gypsum Wallboard immediately, whereas under only the Bubble process there would be an interim between August 6th and the date of issuance of the Bubble Patent where there would be no Patent control.