Before revision: 836 at corner of Channing and Emerson in Palo Alto, California at original location of FTC laboratory The company remained a separate entity within the Mackay Companies, however, and when International Telephone and Telegraph (ITT) purchased the Mackay Companies in 1928 Federal remained a component of the Mackay structure as a manufacturing entity.
After revision: thethe836 at corner of Channing and Emerson in Palo Alto, California at original location of FTC laboratory The company remained a separate entity within the Mackay Companies, however, and when International Telephone and Telegraph (ITT) purchased the Mackay Companies in 1928 Federal remained a component of the Mackay structure as a manufacturing entity.