Cle ment Duval has written:

'Le verre'

A Duval triangle is an equilateral trinagle used in the dissolved gas analysis of transformer oil. The ratios of ethylene, methane, and acetylene are plotted on the sides of the triangle. A line is then drawn from each point to a common intersection point. Where that common point falls determines the diagnosis of the problem.

Joe Duval's birth name is Joseph Duval.

Duval Love's birth name is Duval Lee Love.

Duval County in Florida has an area of approximately 918 square miles.