According to the statistics of signpost. com, there are 38 registered clean-up trademarks/kloc-0.
How to choose other minor categories when registering:
1. Registered trademark 1 piece (maintenance, cleaning information, group number: 37 16), accounting for 0.72%.
2. Registered trademark 1 piece (antirust treatment, group number: 37 13), accounting for 0.72%.
3. Registered trademark 1 piece (maintenance, group number: 37 14), accounting for 0.72%.
4. Registered trademark 1 piece (insecticidal, group number: 37 17), accounting for 0.72% of the registered trademark.
5. Registered trademark 1 piece (clean, group number: 37 16), accounting for 0.72%.
6. Registered trademark 1 piece (involving maintenance, cleaning, repair and cleaning of vehicles, fixed or rolling equipment, trailers, workshops, airplanes, carriages, automobiles, trucks, buses, industrial, agricultural and scientific machines, group number: 3707), accounting for 0.72% of the registered trademark.
7. Registered trademark 1 piece (underwater engineering, group number: 3702), accounting for 0.72%.
8. Registered trademark 1 piece (relating to the restoration of railways, highways, streets, squares and roads, group number: 3702), accounting for 0.72% of the registered trademark.
9. Registered trademark 1 piece (construction engineering, group number: 3702), accounting for 0.72% of the registered trademark.
10. Registered trademark 1 piece (locksmith service, group number: 37 18), accounting for 0.72% of the registered trademark.