the wooden door trademark is the 19th class trademark, which class is the wooden door trademark? As the name implies, it is a wooden door. It can be divided into many types according to materials, processes and uses. Widely used in civil, commercial buildings and houses. Wooden doors are divided into: composite doors and solid wooden doors. The trademark is a similar group of 19 in the 19th category: semi-finished wood 1926, wood 1927, building wood 1927, plywood 1928, finished wood 1929, wood for making household appliances 193, small wood (for carpentry) 19185, wood chip board 19186 and wood pulp board for building 1921.