According to the statistics of signpost. com, there are 237 registered trademarks of cardboard.
How to choose other minor categories when registering:
1. Selective registered trademark (ink pad, group number: 16 13) 1 piece, accounting for 0.42% of the registered trademark.
2. Registered trademark 1 piece (pencil, group number: 16 14), accounting for 0.42%.
3. Registered trademark 1 piece (printed form, group number: 1605), accounting for 0.42%.
4. Registered trademark 1 piece (cardboard hat box, group number: 1609), accounting for 0.42% of the registered trademark.
5. Registered trademark 1 piece (pen (office supplies), group number: 16 14), accounting for 0.42% of the registered trademark.
6. Registered trademark 1 piece (printed publication, group number: 1606), accounting for 0.42% of the registered trademark.
7. Registered trademark 1 piece (recording paper, group number: 1602), accounting for 0.42% of the registered trademark.
8. Registered trademark 1 piece (check the folder, group number: 16 1 1), accounting for 0.42% of the registered trademark.
9. Registered trademark 1 piece (canvas, group number: 16 17), accounting for 0.42% of the registered trademark.
10. Registered trademark 1 piece (office shredder, group number: 16 10), accounting for 0.42%.