According to the statistics of signpost network, there are 89 registered trademarks of concrete and cement.
How to choose other minor categories when registering:
2 registered trademarks of 1. (concrete and cement, group number: 1902), accounting for 2.25%.
2. Two registered trademarks (nonmetallic building materials, group number: 19 1 1), accounting for 2.25% of the registered trademarks.
3. 2 registered trademarks (nonmetal, non-plastic drain valve, nonmetal scaffold, group number: 1909), accounting for 2.25% of the registered trademarks.
4. 2 registered trademarks (nonmetallic building materials, group number: 1902), accounting for 2.25% of the registered trademarks.
5. 2 registered trademarks (nonmetallic building materials, group number: 1908), accounting for 2.25% of the registered trademarks.
6. 2 registered trademarks (nonmetallic chimneys and their structural parts, group number: 1909), accounting for 2.25% of the registered trademarks.
7. 2 registered trademarks (non-luminous, non-mechanical nonmetallic brand, group number: 19 10), accounting for 2.25%.
8. 2 registered trademarks (nonmetallic downpipe and nonmetallic drainage pipe, group number: 1909), accounting for 2.25% of the registered trademarks.
9. 2 registered trademarks (nonmetallic water storage tanks and wells, group number: 1909), accounting for 2.25% of the registered trademarks.
10. 2 registered trademarks (nonmetallic building materials, group number: 1907), accounting for 2.25% of the registered trademarks.