Which of the following are top builders of electric meters?

The selection of Duncan, Westinghouse, Sangamo, and General Electric as top builders of electric meters reflects a historical and industry-specific context where these companies have made significant contributions to the development and manufacturing of electric metering technologies. Each of these companies has a long-standing reputation in the electrical and electronics fields, particularly in industry-standard equipment production.

Duncan is known for its innovation in meter technologies, while Westinghouse has played a crucial role in the electrical industry for more than a century. Sangamo was one of the pioneers in electric metering, especially recognized for its advances in analog and digital meter designs. General Electric, being one of the largest and most diversified industrial corporations, has also been a leading force in electric metering solutions.

This background underscores the proficiency and historical prominence of these manufacturers within the market for electric meters. Such companies are recognized for their reliability, innovation, and contributions to the standards used in electric metering today.