DOP

Machines not included in other classes and machine tools, pumps, namely, submersible dredge pumps, mining pumps, pumps for machines, and processing pumps, namely, pumps for use in processing sand and grit and in soil cleaning installations

Water purification and filtration machines for irrigation and drainage systems

Construction, maintenance and repair of industrial and engineering facilities, namely, buildings, ships and vessels in the nature of platforms for dredging; building construction in the nature of laying cables and pipelines for buildings; underwater dredging work consultation

Planning and building planning consultation for building and building constructions; services of engineers; preparation of expert reports by engineers or laboratory technicians, namely, drawing up of expert technical opinions in connection with underwater dredging work; material testing