Juritsen / Drammen

My grandfather was born in Drammen Theodor Juritsen Apr-15-1902, in 1931 travel from Bergen to Liverpool to New York to Puerto Rico to Venezuela to work in a local oil company. Ottar my father was born in Venezuela in 1935, I Otter was born in Venezuela in 1963. I need a certified copy of a birth certificate of the grandfather for consular procedures, If anyone has a contact in the county offices of Drammen to obtain the certificate i will aprecciate. Thanks.