Class 37 Group 3707 Land Machinery Vehicle Maintenance. Specific service trademarks that can be registered are: 370055 Vehicle Cleaning Service. 370085 Vehicle maintenance services. 370087 Vehicle cleaning services. Vehicle (vehicle) cleaning services. Car wash equipment rental. Self-service car wash facilities are available. Car cleaning. Vehicle (vehicle) cleaning services. Etc., you can choose ten services for free at one time. More than ten services require additional fees. When registering a car wash trademark, you can register 37 related services together.