35 Advertising; business management; business administration; office administrative services; book-keeping; drawing up of statements of accounts; demonstration of goods; updating of advertising material; administrative management of building companies and sale of building materials; marketing consultancy in the fields of civil engineering, marine construction, environmental remediation, offshore oil and gas, building materials, lifting apparatus, cranes and civil engineering equipment, vehicles, apparatus for locomotion by land, air or water, of boats, ships' hulls, boathooks, steering gear for ships, disengaging gear for ships, masts for ships, inclined ways for ships, screw-propellers for ships, oars, ferry boats, ships, dredging vessels, marine vessels and land vehicles mainly used for dredging operations, dredgers; retailing services for the wholesale of building materials, lifting apparatus, cranes and civil engineering equipment, vehicles, apparatus for locomotion by land, air or water, of boats, ships' hulls, boathooks, steering gear for ships, disengaging gear for ships, masts for ships, inclined ways for ships, screw-propellers for ships, oars, ferry boats, ships, dredging vessels, marine vessels and land vehicles mainly used for dredging operations, dredgers; administrative management of building products, namely, administrative processing of purchase orders, invoicing and financial statement analysis, price comparison services, cost-price analysis, marketing studies, compilation and systemization of data into computer databases; administrative services in connection with operating installations intended for removing underwater sediment; administrative preparation of dredging works, namely, office functions, business assistance and preparing price offers