Cleaning, Repairing, Or Assembling Patents (Class 137/15.01)
- Including joint or coupling (Class 137/15.09)
- Detecting or repairing leak (Class 137/15.11)
- Tapping pipe, keg, or tank (Class 137/15.12)
- With content loading or unloading (e.g., dispensing, discharge assistant, etc.) (Class 137/15.16)
- Specific valve or valve element mounting or repairing (Class 137/15.17)