No person shall sell or offer for sale in Oregon any fire hose, hydrant, fire engine or other equipment for fire protection purposes unless such equipment is fitted and equipped with the standard thread for fire hose couplings and hydrant fittings as has been adopted by the State Fire Marshal under ORS 476.030 (Powers and duties of marshal and deputies generally). Fire equipment for special purposes, research programs or special features of fire protection equipment found appropriate for uniformity within a particular protection area, may be exempted from this requirement by order of the State Fire Marshal. [Amended by 1963 c.523 §9; 1965 c.602 §12]