He obtained a degree in political science in 1960 from the University of Lausanne and became that same year deputy director of the Swiss National Exhibition (Expo 64).
After the election of Georges-André Chevallaz to the Federal Council, Delamuraz was appointed Mayor of Lausanne, and from 1981 to 1983 was a member of the Government of the Canton of Vaud in charge of the Department of Agriculture, Industry and Trade.
He fought for Switzerland's membership of the European Economic Area and of the World Trade Organization, and played a decisive role in shaping the new Swiss agricultural policy.
He was affiliated to the Free Democratic Party and served as secretary general of its Vaud (cantonal) section.
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