31304918cleaningPT2026-03-30 20:22:00UF31304919cleanedNDUF31304920cleansingNDBT31298694subtractive processes and techniquesPTNT31318001abrasive cleaningPTNT31318006detoxificationPTNT31318008disinfectingPTNT31318011fumigatingPTNT31318014poulticingPTNT31318015washingPTNT31318018overcleaningPTNT31318022dry cleaningPTNT31318026purificationPTNT31318029sterilizationPTNT31318032wet cleaningPTNT31318039stain removalPTNT31318043laser cleaningPTNT31318046decontaminationPTNT31318047degreasingPTNT31318049steam cleaningPTNT31318052vacuum cleaningPTNT31318057spongingPTNT31318059biocleaningPTNT31318062electrostatic cleaningPTRT31305875cleaning compoundPT