Assertion: gypsum | /r/CapableOf | petition antitrust court
Facets:
Source sentences:
text: Thereafter, National and Certain-teed, claiming that the institution of the Iowa actions violated the 1951 decree, and that, in any event, Gypsum was barred from recovery by reason of unpurged misuse of the patents involved, petitioned the antitrust court to enjoin further prosecution of the actions.