Your search American Telephone and Telegraph Company, Illinois Belltelephone Company, and Southwestern Bell Telephonecompany, Petitioners, v. Honorable John F. Grady, Judge of the United States Districtcourt for the Northern District of Illinois, Respondent.mci Communications Corporation, et al., Plaintiffs-appellees, v. American Telephone and Telegraph Company, Illinois Belltelephone Company, and Southwestern Bell Telephonecompany, Defendants-appellants did not match any document.